Health A–Z

Abdominal aortic aneurysm Acanthosis nigricans Achalasia Acid and chemical burns Acne Acoustic neuroma Acromegaly Actinic keratoses Actinomycosis Acute cholecystitis Acute kidney injury Acute lymphoblastic leukaemia Acute myeloid leukaemia Acute pancreatitis Acute respiratory distress syndrome Addison's disease Adenomyosis ADHD in adults ADHD in children and young people Age-related macular degeneration Agoraphobia Albinism Alcohol poisoning Alcohol-related liver disease Alcohol-use disorder Allergic rhinitis Allergies Altitude sickness Alzheimer's disease Amyloidosis Anabolic steroid misuse Anal cancer Anal fissure Anal fistula Anaphylaxis Androgen insensitivity syndrome Angelman syndrome Angina Angioedema Animal and human bites Ankylosing spondylitis Anorexia nervosa Antiphospholipid syndrome Anxiety disorders in children Aphasia Appendicitis Arthritis Asbestosis Aspergillosis Asthma Astigmatism Ataxia Atherosclerosis Athlete's foot Atopic eczema Atrial fibrillation Auditory processing disorder Autism Autosomal dominant polycystic kidney disease Autosomal recessive polycystic kidney disease Avian flu (bird flu)

Back pain Bacterial vaginosis Baker's cyst Balanitis Bartholin's cyst Bedbugs Behçet's disease Bell's palsy Bile duct cancer Binge eating disorder Bipolar disorder Birthmarks Black eye Bladder cancer Bladder pain syndrome Bladder stones Blepharitis Blisters Body dysmorphic disorder Boils Bone cancer Bone cyst Borderline personality disorder Botulism Bowel cancer Bowel incontinence Bowel polyps Bowen's disease Brain abscess Brain aneurysm Brain death Brain tumours Breast abscess Breast cancer in men Breast cancer in women Breath-holding in babies and children Broken ankle Broken arm or wrist Broken collarbone Broken finger or thumb Broken hip Broken leg Broken nose Broken or bruised ribs Broken toe Bronchiectasis Bronchiolitis Bronchitis Brucellosis Brugada syndrome Bulimia Bullous pemphigoid Bunions Burns and scalds Bursitis

Cancer Carbon monoxide poisoning Cardiomyopathy Cardiovascular disease Carpal tunnel syndrome Cataracts in adults Catarrh Cavernoma Cellulitis Cerebral palsy Cervical cancer Cervical spondylosis Charcot-Marie-Tooth disease Charles Bonnet syndrome Chest infection Chiari malformation Chickenpox Chilblains Childhood cataracts Chipped, broken or cracked tooth Chlamydia Cholera Cholesteatoma Chronic fatigue syndrome Chronic kidney disease Chronic lymphocytic leukaemia Chronic myeloid leukaemia Chronic obstructive pulmonary disease (COPD) Chronic pancreatitis Chronic traumatic encephalopathy Cirrhosis Claustrophobia Cleft lip and palate Clostridioides difficile (C. diff) Clubfoot Cluster headaches Coeliac disease Cold sores Colic Colour vision deficiency Common cold Compartment syndrome Complex regional pain syndrome Congenital heart disease Conjunctivitis Constipation Contact dermatitis Corns and calluses Coronary heart disease Corticobasal degeneration Costochondritis COVID-19 Cradle cap Craniosynostosis Creutzfeldt-Jakob disease (CJD) Crohn's disease Croup Cushing's syndrome Cuts and grazes Cyclical vomiting syndrome Cyclospora Cyclothymia Cystic fibrosis Cytomegalovirus (CMV)

Dandruff Deep vein thrombosis (DVT) Dehydration Dementia Dementia with Lewy bodies Dengue Dental abscess Depression Depression in adults Detached retina Developmental co-ordination disorder in adults Developmental co-ordination disorder in children Developmental dysplasia of the hip Diabetes Diabetes insipidus Diabetic ketoacidosis Diabetic retinopathy Differences in sex development DiGeorge syndrome Diphtheria Discoid eczema Dislocated kneecap Dislocated shoulder Dissociative disorders Diverticular disease and diverticulitis Down's syndrome Dupuytren's contracture Dysarthria Dysentery Dyslexia in adults Dyslexia in children Dystonia

Ear infectionsWe can help Early or delayed puberty Early or premature menopause Earwax build-up Ebola virus disease Ectopic pregnancy Ectropion Edwards' syndrome Ehlers-Danlos syndromes Ejaculation problems Encephalitis Endocarditis Endometriosis Enlarged prostate Epidermolysis bullosa Epididymitis Epiglottitis Epilepsy Erectile dysfunction Erythema multiforme Erythema nodosum Erythrocytosis Erythromelalgia Excessive daytime sleepiness Excessive sweating (hyperhidrosis) Eye cancer Eye injuries

Fabricated or induced illness Falls Febrile seizures Female genital mutilation (FGM) Fetal alcohol spectrum disorder Fibroids Fibromyalgia Flat feet Flat head syndrome Flu Food allergy Food intolerance Food poisoning Foot drop Frontotemporal dementia Frostbite Frozen shoulder Fungal nail infection

Gallbladder cancer Gallstones Ganglion cyst Gangrene Gastritis Gastroparesis Gender dysphoria Generalised anxiety disorder Genital herpes Genital warts Gestational diabetes Giardiasis Gilbert's syndrome Glandular fever Glaucoma Glomerulonephritis Glue ear Goitre Gonorrhoea Gout Granuloma annulare Granulomatosis with polyangiitis Group B strep Growing pains Guillain-Barré syndrome Gum disease Gynaecomastia

Haemochromatosis Haemolytic disease of the fetus and newborn Haemophilia Haemophilus influenzae type b (Hib) Hamstring injury Hand, foot and mouth disease Hantavirus Hay fever Head injury and concussion Head lice and nits Headaches Health anxiety Hearing loss Heart attack Heart block Heart failure Heart rhythm problems (arrhythmia) Heart valve disease Heartburn and acid reflux Heat exhaustion and heatstroke Heat rash (prickly heat) Heavy periods Henoch-Schönlein purpura (HSP) Hepatitis Hepatitis A Hepatitis B Hepatitis C Hereditary haemorrhagic telangiectasia Hereditary spastic paraplegia Hernia Hiatus hernia Herpes simplex eye infections Herpetic whitlow Hidradenitis suppurativa High blood pressure High blood sugar (hyperglycaemia) High cholesterol Hirschsprung's disease HIV and AIDS Hives Hoarding disorder Hodgkin lymphoma Huntington's disease Hydrocephalus Hydronephrosis Hyperacusis (noise sensitivity) Hyperparathyroidism Hypoparathyroidism Hypothermia

Ichthyosis Idiopathic pulmonary fibrosis ImpetigoWe can help Indigestion Infected piercings Infertility Inflammatory bowel disease Ingrown hairs Ingrown toenail Insect bites and stingsWe can help Insomnia Intracranial hypertension Iron deficiency anaemia Irritable bowel syndrome (IBS)

Japanese encephalitis Jaundice Jaundice in babies Jellyfish and other sea creature stings Jet lag Joint hypermobility syndrome

Kawasaki disease Keloid scars Keratosis pilaris Kidney cancer Kidney infection Kidney stones Klinefelter syndrome Knock knees Knocked-out tooth Kyphosis

Labial fusion Labyrinthitis and vestibular neuritis Lactose intolerance Lambert-Eaton myasthenic syndrome Laryngeal cancer Laryngitis Lazy eye Learning disabilities Leg cramps Legionnaires' disease Leptospirosis Leukoplakia Lichen planus Lichen sclerosus Lipoedema Lipoma Listeriosis Liver cancer Liver disease Long COVID Long QT syndrome Long-sightedness Low blood pressure Low blood sugar (hypoglycaemia) Low sperm count Low white blood cell count Lung cancer Lupus Lyme disease Lymphoedema

Macular hole Malaria Male menopause Malignant brain tumour Mallet finger Malnutrition Marfan syndrome Mastitis Mastocytosis Mastoiditis Measles Medically unexplained symptoms Melanoma skin cancer Ménière's disease Meningitis Meniscus tear Menopause Mesothelioma Metabolic syndrome Middle East respiratory syndrome (MERS) Migraine Miscarriage Molar pregnancy Moles Molluscum contagiosum Morton's neuroma Motion sickness Motor neurone disease Mouth cancer Mouth ulcers Mpox MRSA Mucositis Multiple sclerosis Multiple system atrophy Mumps Munchausen syndrome Muscular dystrophy Myasthenia gravis Myelodysplastic syndrome (MDS) Myeloma Myositis

Nappy rash Narcolepsy Nasal and sinus cancer Nasal polyps Nasopharyngeal cancer Necrotising fasciitis Neonatal herpes Neonatal respiratory distress syndrome Nephrotic syndrome in children Neurofibromatosis type 1 Neurofibromatosis type 2 Neuromyelitis optica Night terrors and nightmares Non-alcoholic fatty liver disease Non-allergic rhinitis Non-cancerous brain tumours Non-Hodgkin lymphoma Non-melanoma skin cancer Noonan syndrome Norovirus Nosebleed

Obsessive compulsive disorder (OCD) Oesophageal atresia and tracheo-oesophageal fistula Oesophageal cancer Oral thrush (mouth thrush) Orf Osteoarthritis Osteomyelitis Osteophyte Osteoporosis Otosclerosis Ovarian cancer Ovarian cyst Overactive thyroid (hyperthyroidism) Overweight and obesity in adultsWe can help

Paget's disease of bone Paget's disease of the nipple Pancreatic cancer Panic disorder Parkinson's disease Patau's syndrome Pelvic inflammatory disease (PID) Pelvic organ prolapse Pemphigus vulgaris Penile cancer Perforated eardrum Pericarditis Periods Peripheral arterial disease (PAD) Peripheral neuropathy Peritonitis Personality disorders Peyronie's disease Phaeochromocytoma Phimosis (tight foreskin) Phlebitis Phobias Piles (haemorrhoids) Pilonidal sinus PIP breast implants Pityriasis rosea Pityriasis versicolor Plantar fasciitis Pleurisy Pneumonia Poisoning Polio Polycystic ovary syndrome (PCOS) Polyhydramnios Polymorphic light eruption Polymyalgia rheumatica Pompholyx Post-herpetic neuralgia Post-traumatic stress disorder (PTSD) Postnatal depression Postpartum psychosis Postural tachycardia syndrome Prader-Willi syndrome Pre-eclampsia Premenstrual syndrome (PMS) Pressure ulcers Primary biliary cholangitis (PBC) Problems swallowing pills Progressive supranuclear palsy (PSP) Prosopagnosia (face blindness) Prostate cancer Prostatitis Psoriasis Psoriatic arthritis Psychosis Psychotic depression Pubic lice Pudendal neuralgia Pulmonary embolism Pulmonary hypertension Pyoderma gangrenosum

Q fever

Rabies Raynaud's Reactive arthritis Reflux in babies Repetitive strain injury (RSI) Respiratory syncytial virus (RSV) Respiratory tract infections Restless legs syndrome Restricted growth Retinal migraine Retinoblastoma Rett syndrome Reye's syndrome Rheumatic fever Rheumatoid arthritis Rickets and osteomalacia Ringworm Rosacea Roseola

Salivary gland stones Sarcoidosis Scabies Scarlet fever Scars Schistosomiasis Schizophrenia Sciatica Scleroderma Scoliosis Scurvy Seasonal affective disorder (SAD) Selective mutism Sepsis Septic arthritis Sexually transmitted infections (STIs) Shin splints ShinglesWe can help Short-sightedness Shoulder impingement Sick building syndrome Sickle cell disease Silicosis SinusitisWe can help Sjögren's syndrome Skin abscess Skin cyst Skin picking disorder Skin tags Slapped cheek syndrome Sleep apnoea Sleep paralysis Sleepwalking Slipped disc Snake bites Social anxiety Soft tissue sarcoma Spina bifida Spinal muscular atrophy (SMA) Spondylolisthesis Sprains and strains Squint Stammering Staphylococcal (staph) infections Stevens-Johnson syndrome Stillbirth Stomach cancer Stomach ulcer Strep A Stretch marks Stroke Stye Subarachnoid haemorrhage Subdural haematoma Sunburn Supraventricular tachycardia (SVT) Swollen ankles, feet and legs Swollen arms and hands Syphilis

Tailbone (coccyx) pain Temporal arteritis Temporomandibular disorder (TMD) Tendonitis Tennis elbow Tension headaches Testicular cancer Tetanus Thalassaemia Thoracic outlet syndrome Threadworms Thrombophilia Thrush in men and women Thyroid cancer Tick-borne encephalitis Tics Tinnitus Tongue-tie Tonsillitis Tooth decay Tourette syndrome Toxic shock syndrome Toxocariasis Toxoplasmosis Transient ischaemic attack (TIA) Trichomoniasis Trichotillomania Trigeminal neuralgia Trigger finger Tuberculosis (TB) Turner syndrome Type 1 diabetes Type 2 diabetes Typhoid fever Typhus

Ulcerative colitis Umbilical hernia Underactive thyroid (hypothyroidism) Undescended testicles Urethritis Urinary incontinence Urinary tract infections (UTIs)We can help Uveitis

Vaginal cancer Vaginismus Vaginitis Varicose eczema Varicose veins Vascular dementia Vasculitis Venous leg ulcer Vertigo Vision loss Vitamin B12 or folate deficiency anaemia Vitiligo Von Willebrand disease Vulval cancer Vulvodynia

Warts and verrucas Whiplash Whooping cough Wolff-Parkinson-White syndrome Womb cancer Worms in humans

Yellow fever

Zika virus