A
- AAA
- AAA screening
- Abdominal aortic aneurysm
- Abdominal aortic aneurysm screening
- Abortion
- Abscess
- Acanthosis nigricans
- Achalasia
- Acid and chemical burns
- Acid reflux in babies
- Acne
- Acoustic neuroma (vestibular schwannoma)
- Acromegaly
- Actinic keratoses (solar keratoses)
- Actinomycosis
- Acupuncture
- Acute cholecystitis
- Acute kidney injury
- Acute lymphoblastic leukaemia
- Acute myeloid leukaemia
- Acute pancreatitis
- Acute respiratory distress syndrome
- Addison's disease
- Adenoidectomy
- Age-related cataracts
- Age-related macular degeneration (AMD)
- Agoraphobia
- Air or gas embolism
- Albinism
- Alcohol misuse
- Alcohol poisoning
- Alcohol-related liver disease
- Alexander technique
- Alkaptonuria
- Allergic rhinitis
- Allergies
- Altitude sickness
- Alzheimer's disease
- Amblyopia
- Amnesia
- Amniocentesis
- Amputation
- Amyloidosis
- Anabolic steroid misuse
- Anaemia (iron deficiency)
- Anaemia (vitamin B12 or folate deficiency)
- Anaesthesia
- Anal cancer
- Anal fissure
- Anal fistula
- Anal pain
- Anaphylaxis
- Androgen insensitivity syndrome
- Aneurysm (abdominal aortic)
- Aneurysm (brain)
- Angelman syndrome
- Angina
- Angioedema
- Angiography
- Angioplasty
- Ankle pain
- Ankylosing spondylitis
- Anorexia nervosa
- Anosmia
- Anosmia
- Antacids
- Antibiotics
- Anticoagulant medicines
- Antidepressants
- Antifungal medicines
- Antihistamines
- Antiphospholipid syndrome (APS)
- Antisocial personality disorder
- Anus (itchy)
- Anxiety disorder in adults
- Anxiety disorders in children
- Aortic valve replacement
- Aphasia
- Appendicitis
- Arrhythmia
- Arterial thrombosis
- Arthroscopy
- Asbestosis
- Asperger's
- Aspergillosis
- Aspirin
- Asthma
- Astigmatism
- Ataxia
- Athlete's foot
- Atopic eczema
- Atrial fibrillation
- Attention deficit hyperactivity disorder (ADHD)
- Auditory processing disorder
- Autism
- Autosomal dominant polycystic kidney disease
- Autosomal recessive polycystic kidney disease
- Avian flu
B
- Back pain
- Bacterial vaginosis
- Bad breath
- Baker's cyst
- Balanitis
- Barium enema
- Bartholin's cyst
- Basal cell carcinoma
- Bedbugs
- Bedwetting
- Behçet's disease
- Being sick
- Bell's palsy
- Benign brain tumour (non-cancerous)
- Benign prostate enlargement
- Beta blockers
- Bile duct cancer (cholangiocarcinoma)
- Bilharzia
- Binge eating disorder
- Biological and biosimilar medicines (biosimilars)
- Biopsy
- Bipolar disorder
- Bird flu
- Birthmarks
- Bite (animal or human)
- Black eye
- Bladder cancer
- Bladder stones
- Bleeding after the menopause
- Bleeding from the bottom (rectal bleeding)
- Blepharitis
- Blindness and vision loss
- Blisters
- Blood clots
- Blood groups
- Blood in semen (haematospermia)
- Blood in urine
- Blood pressure (high)
- Blood pressure (low)
- Blood pressure test
- Blood tests
- Blood transfusion
- Blue skin or lips (cyanosis)
- Blushing
- Body dysmorphic disorder (BDD)
- Body odour (BO)
- Body piercing
- Boils and carbuncles
- Bone cancer
- Bone cyst
- Bone density scan (DEXA scan)
- Borderline personality disorder
- Bornholm disease
- Botulism
- Bowel cancer
- Bowel cancer screening
- Bowel incontinence
- Bowel polyps
- Bowel transplant
- Bowen's disease
- Brachycephaly and plagiocephaly
- Brain abscess
- Brain aneurysm
- Brain death
- Brain haemorrhage
- Brain tumour (benign)
- Brain tumour (malignant)
- Brain tumours
- Breast abscess
- Breast cancer in men
- Breast cancer in women
- Breast cancer screening
- Breath-holding in babies and children
- Broken ankle
- Broken arm or wrist
- Broken collarbone
- Broken finger or thumb
- Broken leg
- Broken nose
- Broken or bruised ribs
- Broken toe
- Bronchiectasis
- Bronchiolitis
- Bronchitis
- Bronchodilators
- Brucellosis
- Brugada syndrome
- Bruxism
- Bulimia
- Bullous pemphigoid
- Bunions
- Burns and scalds
- Bursitis
- Buttock pain
C
- CABG
- Caesarean section
- Cancer
- Cannabis oil (medical cannabis)
- Carbon monoxide poisoning
- Carcinoembryonic antigen (CEA) test
- Cardiac catheterisation and coronary angiography
- Cardiomyopathy
- Cardiovascular disease
- Carotid endarterectomy
- Carpal tunnel syndrome
- Cartilage damage
- Cataract surgery
- Cataracts (age-related)
- Cataracts (children)
- Catarrh
- Cavernoma
- Cavernous sinus thrombosis
- Cellulitis
- Cerebral palsy
- Cervical cancer
- Cervical rib
- Cervical screening
- Cervical spondylosis
- Charcot-Marie-Tooth disease
- Charles Bonnet syndrome
- Chemotherapy
- Chest infection
- Chest pain
- Chiari malformation
- Chickenpox
- Chilblains
- Chipped, broken or cracked tooth
- Chiropractic
- Chlamydia
- Cholangiocarcinoma
- Cholecystitis (acute)
- Cholera
- Cholesteatoma
- Cholesterol (high)
- Chorionic villus sampling
- Chronic fatigue syndrome (CFS/ME)
- Chronic kidney disease
- Chronic lymphocytic leukaemia
- Chronic myeloid leukaemia
- Chronic obstructive pulmonary disease (COPD)
- Chronic pancreatitis
- Chronic traumatic encephalopathy
- Circumcision in boys
- Circumcision in men
- Cirrhosis
- CJD
- Claustrophobia
- Cleft lip and palate
- Clinical depression
- Clinical trials
- Clostridium difficile
- Club foot
- Cluster headaches
- Coated or white tongue
- Coccydynia (tailbone pain)
- Coeliac disease
- Cognitive behavioural therapy (CBT)
- Cold sores
- Colic
- Colon cancer
- Colonoscopy
- Colostomy
- Colour vision deficiency (colour blindness)
- Colposcopy
- Coma
- Common cold
- Compartment syndrome
- Complementary and alternative medicine
- Complex regional pain syndrome
- Concussion
- Confusion (sudden)
- Congenital heart disease
- Congenital hip dislocation
- Conjunctivitis
- Consent to treatment
- Constipation
- Contact dermatitis
- Cornea transplant
- Corns and calluses
- Coronary angioplasty and stent insertion
- Coronary artery bypass graft
- Coronary heart disease
- Coronavirus (COVID-19)
- Corticobasal degeneration
- Corticosteroid cream
- Corticosteroids
- Cosmetic procedures
- Costochondritis
- Cough
- Coughing up blood (blood in phlegm)
- Counselling
- COVID-19
- Cradle cap
- Craniosynostosis
- Creutzfeldt-Jakob disease
- Crohn's disease
- Croup
- CT scan
- Cushing's syndrome
- Cuts and grazes
- Cyanosis
- Cyclical vomiting syndrome
- Cyclospora
- Cyclothymia
- Cystic fibrosis
- Cystitis
- Cystoscopy
- Cytomegalovirus (CMV)
D
- Dandruff
- Deafblindness
- Deafness
- Decompression sickness
- Decongestants
- Dehydration
- Delirium
- Dementia (frontotemporal)
- Dementia (vascular)
- Dementia with Lewy bodies
- Dengue
- Dental abscess
- Dental pain
- Dentures (false teeth)
- Depression
- Detached retina (retinal detachment)
- Developmental co-ordination disorder (dyspraxia) in children
- Developmental dysplasia of the hip
- DEXA scan
- Diabetes
- Diabetes (type 1)
- Diabetes (type 2)
- Diabetes in pregnancy
- Diabetes insipidus
- Diabetic eye screening
- Diabetic ketoacidosis
- Diabetic retinopathy
- Dialysis
- Diarrhoea
- Diarrhoea and vomiting
- Differences in sex development
- DiGeorge syndrome (22q11 deletion)
- Diphtheria
- Discoid eczema
- Dislocated kneecap
- Dislocated shoulder
- Disorders of consciousness
- Dissociative disorders
- Diverticular disease and diverticulitis
- Dizziness
- Double vision
- Down's syndrome
- Dry eyes
- Dry lips
- Dry mouth
- Dupuytren's contracture
- DVT
- DVT (deep vein thrombosis)
- Dwarfism
- Dysarthria (difficulty speaking)
- Dysentery
- Dyslexia
- Dysphagia (swallowing problems)
- Dyspraxia (developmental co-ordination disorder) in adults
- Dyspraxia in children
- Dystonia
E
- Ear infections
- Earache
- Eardrum (burst)
- Early menopause
- Early or delayed puberty
- Earwax build-up
- Eating disorders
- Ebola virus disease
- Echocardiogram
- Ectopic beats
- Ectopic pregnancy
- Ectropion
- Eczema (atopic)
- Eczema (contact dermatitis)
- Eczema (discoid)
- Eczema (varicose)
- Edwards' syndrome (trisomy 18)
- Ehlers-Danlos syndromes
- Ejaculation problems
- Elbow and arm pain
- Electrocardiogram (ECG)
- Electroencephalogram (EEG)
- Electrolyte test
- Embolism
- Emollients
- Empyema
- Encephalitis
- Endocarditis
- Endometrial cancer
- Endometriosis
- Endoscopy
- Enhanced recovery
- Epidermolysis bullosa
- Epididymitis
- Epidural
- Epiglottitis
- Epilepsy
- Erectile dysfunction (impotence)
- Erythema multiforme
- Erythema nodosum
- Erythromelalgia
- Essential tremor
- Euthanasia and assisted suicide
- Ewing sarcoma
- Excessive hair growth (hirsutism)
- Exophthalmos (bulging eyes)
- Eye cancer
- Eye floaters
- Eye infection (herpes)
- Eye injuries
- Eye tests for children
- Eyelid problems
F
- Fabricated or induced illness
- Face blindness
- Fainting
- Falls
- Farting (flatulence)
- Febrile seizures
- Feeling sick (nausea)
- Female genital mutilation (FGM)
- Femoral hernia repair
- Fever in children
- Fibroids
- Fibromyalgia
- First aid
- Fits (children with fever)
- Fits (seizures)
- Flat feet
- Flat head syndrome
- Floaters and flashes in the eyes
- Flu
- Fluoride
- Foetal alcohol syndrome
- Food allergy
- Food colours and hyperactivity
- Food intolerance
- Food poisoning
- Foot drop
- Foot pain
- Foreskin problems
- Frontotemporal dementia
- Frostbite
- Frozen shoulder
- Functional neurological disorder
- Fungal nail infection
G
- Gallbladder cancer
- Gallbladder pain
- Gallbladder removal
- Gallstones
- Ganglion cyst
- Gangrene
- Gastrectomy
- Gastritis
- Gastro-oesophageal reflux disease (GORD)
- Gastroenteritis
- Gastroparesis
- Gastroscopy
- Gender dysphoria
- General anaesthesia
- Generalised anxiety disorder in adults
- Genetic and genomic testing
- Genetic test for cancer gene
- Genital herpes
- Genital warts
- Gestational diabetes
- Giardiasis
- Gigantism
- Gilbert's syndrome
- Glandular fever
- Glaucoma
- Glomerulonephritis
- Glue ear
- Glutaric aciduria type 1
- Goitre
- Gonorrhoea
- Gout
- Granuloma annulare
- Granulomatosis with polyangiitis (Wegener's granulomatosis)
- Group B strep
- Growing pains
- Guillain-Barré syndrome
- Gum disease
H
- Haemochromatosis
- Haemophilia
- Haemophilus influenzae type b (Hib)
- Hair dye reactions
- Hair loss
- Hairy cell leukaemia
- Halitosis
- Hallucinations and hearing voices
- Hamstring injury
- Hand pain
- Hand tendon repair
- Hand, foot and mouth disease
- Hay fever
- Head and neck cancer
- Head injury and concussion
- Head lice and nits
- Headaches
- Headaches (hormone)
- Headaches (tension-type)
- Headaches in children
- Health anxiety
- Hearing loss
- Hearing tests
- Hearing tests for children
- Hearing voices
- Heart attack
- Heart block
- Heart bypass
- Heart disease (coronary)
- Heart failure
- Heart pain
- Heart palpitations and ectopic beats
- Heart rhythm problems
- Heart transplant
- Heart valve problems
- Heart valve replacement
- Heart-lung transplant
- Heartburn and acid reflux
- Heat exhaustion and heatstroke
- Heat rash (prickly heat)
- Heavy periods
- Heel pain
- Henoch-Schönlein purpura (HSP)
- Hepatitis
- Hepatitis A
- Hepatitis B
- Hepatitis C
- Herbal medicines
- Herceptin (trastuzumab)
- Hereditary haemorrhagic telangiectasia (HHT)
- Hereditary neuropathy with pressure palsies (HNPP)
- Hereditary spastic paraplegia
- Hernia
- Hernia (femoral)
- Hernia (hiatus)
- Hernia (inguinal)
- Hernia (umbilical)
- Herpes (genital)
- Herpes in babies
- Herpes simplex eye infections
- Herpetic whitlow (whitlow finger)
- Hiatus hernia
- Hiccups
- Hidradenitis suppurativa (HS)
- High blood pressure (hypertension)
- High cholesterol
- Hip dysplasia
- Hip fracture
- Hip pain in adults
- Hip pain in children (irritable hip)
- Hip replacement
- Hirschsprung's disease
- Hirsutism
- HIV and AIDS
- Hives
- Hoarding disorder
- Hodgkin lymphoma
- Home oxygen therapy
- Homeopathy
- Homocystinuria
- Hormone headaches
- Hormone replacement therapy (HRT)
- HRT
- Hughes syndrome
- Human papillomavirus (HPV)
- Huntington's disease
- Hydrocephalus
- Hydronephrosis
- Hyperglycaemia (high blood sugar)
- Hyperhidrosis
- Hyperparathyroidism
- Hypersomnia
- Hypertension
- Hyperthyroidism
- Hypnotherapy
- Hypochondria
- Hypoglycaemia (low blood sugar)
- Hypoparathyroidism
- Hypotension
- Hypothermia
- Hypothyroidism
- Hypotonia
- Hysterectomy
- Hysteroscopy
I
- IBS
- Ichthyosis
- Idiopathic pulmonary fibrosis
- Ileostomy
- Impetigo
- Impotence
- Incontinence (urinary)
- Indigestion
- Infertility
- Inflammatory bowel disease
- Influenza
- Ingrown hairs
- Ingrown toenail
- Inguinal hernia repair
- Insect bites and stings
- Insomnia
- Intensive care
- Intersex
- Interstitial cystitis
- Intracranial hypertension
- Intrauterine insemination (IUI)
- Iron deficiency anaemia
- Irregular periods
- Irritable bowel syndrome (IBS)
- Irritable hip
- Isovaleric acidaemia
- Itchy bottom
- Itchy skin
- IVF
J
K
L
- Labial fusion
- Labyrinthitis and vestibular neuritis
- Lactate dehydrogenase (LDH) test
- Lactose intolerance
- Lambert-Eaton myasthenic syndrome
- Laparoscopy (keyhole surgery)
- Laryngeal (larynx) cancer
- Laryngitis
- Laxatives
- Lazy eye
- Learning disabilities
- Leg cramps
- Leg ulcer
- Legionnaires' disease
- Leptospirosis (Weil's disease)
- Leukaemia (acute lymphoblastic)
- Leukaemia (acute myeloid)
- Leukaemia (chronic lymphocytic)
- Leukaemia (chronic myeloid)
- Leukaemia (hairy cell)
- Leukoplakia
- Lichen planus
- Lichen sclerosus
- Limping in children
- Lipoedema
- Lipoma
- Lips (sore or dry)
- Listeriosis
- Liver cancer
- Liver disease
- Liver disease (alcohol-related)
- Liver transplant
- Local anaesthesia
- Long QT syndrome
- Long-sightedness
- Loss of libido (reduced sex drive)
- Lost or changed sense of smell
- Low blood pressure (hypotension)
- Low blood sugar (hypoglycaemia)
- Low sperm count
- Low white blood cell count
- Lumbar decompression surgery
- Lumbar puncture
- Lumps
- Lung cancer
- Lung transplant
- Lupus
- Lyme disease
- Lymphoedema
M
- Macular degeneration (age-related)
- Macular hole
- Magnesium test
- Malaria
- Male menopause
- Malignant brain tumour (brain cancer)
- Mallet finger
- Malnutrition
- Maple syrup urine disease
- Marfan syndrome
- Mastectomy
- Mastitis
- Mastocytosis
- Mastoiditis
- MCADD
- Measles
- Medically unexplained symptoms
- Medicines information
- Memory loss (amnesia)
- Ménière's disease
- Meningitis
- Menopause
- Menopause (early)
- Menstrual pain
- Mental health and wellbeing
- Mesothelioma
- Metabolic syndrome
- Metallic taste
- Middle East respiratory syndrome (MERS)
- Migraine
- Miscarriage
- Mitral valve problems
- Molar pregnancy
- Moles
- Molluscum contagiosum
- Monkeypox
- Morton's neuroma
- Motion sickness
- Motor neurone disease
- Mouth cancer
- Mouth thrush
- Mouth ulcers
- MRI scan
- MRSA
- Mucositis
- Multiple myeloma
- Multiple sclerosis
- Multiple system atrophy
- Mumps
- Munchausen's syndrome
- Muscular dystrophy
- Myalgic encephalomyelitis (ME)
- Myasthenia gravis
- Mycobacterium chimaera infection
- Myelodysplastic syndrome (myelodysplasia)
- Myeloma
- Myopia
- Myositis (polymyositis and dermatomyositis)
N
- Nail fungal infection
- Nail patella syndrome
- Nail problems
- Narcolepsy
- Nasal and sinus cancer
- Nasal polyps
- Nasopharyngeal cancer
- Nausea
- Neck pain
- Necrotising fasciitis
- Neonatal herpes (herpes in a baby)
- Nephrotic syndrome in children
- Neuroblastoma
- Neuroendocrine tumours
- Neuroendocrine tumours and carcinoid syndrome
- Neurofibromatosis type 1
- Neurofibromatosis type 2
- Neuromyelitis optica
- Newborn jaundice
- Newborn respiratory distress syndrome
- NHS screening
- Night sweats
- Night terrors and nightmares
- Nipple discharge
- Noise sensitivity (hyperacusis)
- Non-alcoholic fatty liver disease (NAFLD)
- Non-allergic rhinitis
- Non-gonococcal urethritis
- Non-Hodgkin lymphoma
- Noonan syndrome
- Norovirus (vomiting bug)
- Nose cancer
- Nosebleed
- NSAIDs
O
- Obesity
- Obsessive compulsive disorder (OCD)
- Occupational therapy
- Oesophageal atresia and tracheo-oesophageal fistula
- Oesophageal cancer
- Oral thrush (mouth thrush)
- Orf
- Orthodontics
- Osteoarthritis
- Osteomalacia
- Osteomyelitis
- Osteopathy
- Osteophyte (bone spur)
- Osteoporosis
- Otosclerosis
- Ovarian cancer
- Ovarian cyst
- Overactive thyroid (hyperthyroidism)
- Ovulation pain
- Oxygen therapy
P
- Pacemaker implantation
- Paget's disease of bone
- Paget's disease of the nipple
- Palpitations
- Pancreas transplant
- Pancreatic cancer
- Pancreatitis (acute)
- Pancreatitis (chronic)
- Panic disorder
- Paralysis
- Parkinson's disease
- Patau's syndrome
- Peak flow test
- Pelvic inflammatory disease
- Pelvic organ prolapse
- Pelvic pain
- Pemphigus vulgaris
- Penile cancer
- Penis problems
- Perforated eardrum
- Pericarditis
- Period pain
- Periods
- Periods (heavy)
- Periods (irregular)
- Periods (stopped or missed)
- Peripheral arterial disease (PAD)
- Peripheral neuropathy
- Peritonitis
- Persistent trophoblastic disease and choriocarcinoma
- Personality disorder
- PET scan
- Phaeochromocytoma
- Phantosmia
- Phenylketonuria
- Phimosis
- Phlebitis (superficial thrombophlebitis)
- Phobias
- Phosphate test
- Photodynamic therapy (PDT)
- Physiotherapy
- Piles
- Piles (haemorrhoids)
- Pilonidal sinus
- Pins and needles
- PIP breast implants
- Pityriasis rosea
- Pityriasis versicolor
- Plagiocephaly and brachycephaly (flat head syndrome)
- Plantar fasciitis
- Plastic surgery
- Pleurisy
- PMS (premenstrual syndrome)
- Pneumonia
- Poisoning
- Polio
- Polycystic kidney disease (autosomal dominant)
- Polycystic kidney disease (autosomal recessive)
- Polycystic ovary syndrome
- Polycythaemia
- Polyhydramnios (too much amniotic fluid)
- Polymorphic light eruption
- Polymyalgia rheumatica
- Pompholyx (dyshidrotic eczema)
- Popliteal cyst
- Post-herpetic neuralgia
- Post-mortem
- Post-polio syndrome
- Post-traumatic stress disorder (PTSD)
- Postmenopausal bleeding
- Postnatal depression
- Postpartum psychosis
- Postural tachycardia syndrome (PoTS)
- Potassium test
- Prader-Willi syndrome
- Pre-eclampsia
- Premature ejaculation
- Pressure ulcers (pressure sores)
- Priapism (painful erections)
- Prickly heat
- Primary biliary cholangitis (primary biliary cirrhosis)
- Probiotics
- Proctalgia
- Progressive supranuclear palsy
- Prolapse (pelvic organ)
- Prosopagnosia (face blindness)
- Prostate cancer
- Prostate enlargement
- Prostate problems
- Prostatitis
- Psoriasis
- Psoriatic arthritis
- Psychiatry
- Psychosis
- Puberty (early or delayed)
- Pubic lice
- Pudendal neuralgia
- Pulmonary embolism
- Pulmonary hypertension
- Pyoderma gangrenosum
R
- Rabies
- Radiotherapy
- Rashes in babies and children
- Raynaud's
- Reactive arthritis
- Rectal bleeding
- Rectal cancer
- Rectal examination
- Red blood cell count
- Red eye
- Reflux in babies
- Repetitive strain injury (RSI)
- Respiratory tract infections (RTIs)
- Restless legs syndrome
- Restricted growth (dwarfism)
- Retinal detachment
- Retinal migraine
- Retinoblastoma (eye cancer in children)
- Rett syndrome
- Reye's syndrome
- Rhesus disease
- Rheumatic fever
- Rheumatoid arthritis
- Rhinitis (allergic)
- Rickets and osteomalacia
- Ringworm
- Root canal treatment
- Rosacea
- Roseola
- Roundworm
- Rubella (german measles)
S
- Salivary gland stones
- Sarcoidosis
- SARS (severe acute respiratory syndrome)
- Scabies
- Scarlet fever
- Scars
- Schistosomiasis (bilharzia)
- Schizophrenia
- Sciatica
- Scleroderma
- Scoliosis
- Scurvy
- Seasonal affective disorder (SAD)
- Seizures (children with fever)
- Seizures (fits)
- Selective mutism
- Selective serotonin reuptake inhibitors (SSRIs)
- Self-harm
- Sense of smell (lost/changed)
- Sepsis
- Septic arthritis
- Severe head injury
- Sexually transmitted infections (STIs)
- Shaking
- Shin pain (shin splints)
- Shin splints
- Shingles
- Short-sightedness (myopia)
- Shortness of breath
- Shoulder impingement
- Shoulder pain
- Sick building syndrome
- Sickle cell disease
- Silicosis
- Sinus cancer
- Sinusitis
- Sinusitis (sinus infection)
- Sjögren's syndrome
- Skin cancer (melanoma)
- Skin cancer (non-melanoma)
- Skin cyst
- Skin picking disorder
- Skin tags
- Slapped cheek syndrome
- Sleep apnoea
- Sleep paralysis
- Sleepwalking
- Slipped disc
- Small bowel transplant
- Smear test
- Smelling things that aren't there (phantosmia)
- Smelly urine
- Smoking (treatments to stop)
- Snake bites
- Snoring
- Social anxiety (social phobia)
- Social care and support guide
- Soft tissue sarcomas
- Soiling (child pooing their pants)
- Solar keratoses
- Sore lips
- Sore or white tongue
- Sore throat
- Sperm count (low)
- Spina bifida
- Spinal muscular atrophy
- Spirometry
- Spleen problems and spleen removal
- Spondylolisthesis
- Sports injuries
- Sprains and strains
- Squamous cell carcinoma
- Squint
- Stammering
- Staph infection
- Statins
- Stem cell and bone marrow transplants
- Stent insertion
- Steroid cream
- Steroid inhalers
- Steroid injections
- Steroid misuse
- Steroid nasal sprays
- Steroid tablets
- Steroids
- Stevens-Johnson syndrome
- Stillbirth
- Sting or bite (insect)
- Stomach ache
- Stomach bug
- Stomach cancer
- Stomach ulcer
- Stop smoking treatments
- Stopped or missed periods
- Stretch marks
- Stroke
- Stuttering
- Stye
- Subarachnoid haemorrhage
- Subdural haematoma
- Sudden confusion (delirium)
- Sudden infant death syndrome (SIDS)
- Suicidal thoughts
- Sunburn
- Superficial thrombophlebitis
- Supraventricular tachycardia (SVT)
- Surgery (having an operation)
- Swallowing pills
- Swallowing problems
- Sweating (excessive)
- Sweating at night
- Swine flu (H1N1)
- Swollen ankles, feet and legs (oedema)
- Swollen arms and hands (oedema)
- Swollen glands
- Syphilis
T
- Tapeworms
- Tay-Sachs disease
- Teeth grinding (bruxism)
- Temporal arteritis
- Temporomandibular disorder (TMD)
- Tendonitis
- Tennis elbow
- TENS (transcutaneous electrical nerve stimulation)
- Tension-type headaches
- Testicle lumps and swellings
- Testicular cancer
- Tetanus
- Thalassaemia
- Thirst (excessive)
- Threadworms
- Throat (sore)
- Thrombophilia
- Thrush in men and women
- Thyroid cancer
- Thyroiditis
- TIA
- Tick-borne encephalitis (TBE)
- Tics
- Tight foreskin (phimosis and paraphimosis)
- Tinnitus
- Toe pain
- Tongue (sore or white)
- Tongue cancer
- Tongue-tie
- Tonsillitis
- Tooth (chipped or broken)
- Tooth decay
- Tooth knocked out
- Toothache
- Total iron-binding capacity (TIBC) and transferrin test
- Total protein test
- Tourette's syndrome
- Toxic shock syndrome
- Toxocariasis
- Toxoplasmosis
- Tracheostomy
- Transient ischaemic attack (TIA)
- Transurethral resection of the prostate (TURP)
- Travel vaccinations
- Tremor
- Tremor or shaking hands
- Trichomoniasis
- Trichotillomania (hair pulling disorder)
- Trigeminal neuralgia
- Trigger finger
- Trimethylaminuria ('fish odour syndrome')
- Tuberculosis (TB)
- Tuberous sclerosis
- Tummy ache
- Tummy bug
- Turner syndrome
- Twitching eyes and muscles
- Type 1 diabetes
- Type 2 diabetes
- Typhoid fever
- Typhus
U
- Ulcerative colitis
- Ultrasound scan
- Umbilical hernia repair
- Underactive thyroid (hypothyroidism)
- Undescended testicles
- Unintentional weight loss
- Urethritis (NGU)
- Urinary catheter
- Urinary incontinence
- Urinary tract infections (UTIs)
- Urine (smelly)
- Urine albumin to creatinine ratio (ACR)
- Uterine (womb) cancer
- Uveitis
V
- Vaccinations
- Vagina problems
- Vaginal cancer
- Vaginal discharge
- Vaginal dryness
- Vaginal pain
- Vaginismus
- Vaginitis
- Varicose eczema
- Varicose veins
- Vascular dementia
- Vasculitis
- Vegetative state
- Venous leg ulcer
- Vertigo
- Vestibular neuritis
- Vestibular schwannoma
- Vitamin B12 or folate deficiency anaemia
- Vitamins and minerals
- Vitiligo
- Vomiting
- Vomiting blood (haematemesis)
- Von Willebrand disease
- Vulval cancer
- Vulvodynia (vulval pain)