This glossary explains common medical terms in plain English, to help you better understand health information. This glossary explains common medical terms in plain English, to help you better understand health information. Abdominal aortic aneurysm Absence seizures Achilles tendon Acoustic neuroma Addison's disease Age-related macular degeneration (AMD) AIDS and HIV infection Alcohol dependence (alcoholism) Allergic reactions to cow's milk Allergic rhinitis (hay fever) Allergies (food) Allergies and hypersensitivities Allergies to seafood Allergy (grass) Alpha-1 antitrypsin deficiency (AATD) Altitude sickness Alzheimer's disease Amyotrophic lateral sclerosis Angelman syndrome Ankylosing spondylitis Anorexia nervosa Antiphospholipid Syndrome Aortic coarctation Aortic dissection Aortic stenosis Apraxia of speech Arthritis in children (juvenile arthritis) Asthma and pregnancy Asthma in children (6 to 11 years) Asthma in children under 6 Atherosclerosis (peripheral) Atrial fibrillation Attention deficit disorder (ADD or ADHD) Autism spectrum disorder (ASD) Autoimmune diseases avian influenza Back injuries - symptoms and treatments Back pain — an overview Bacterial infections Bacterial pneumonia Bacterial vaginosis Balanitis and balanoposthitis Baldness (in men) Baldness (in women) Barmah Forest virus Bartholin’s cysts Basal cell carcinoma Bee and wasp stings Benign prostate hypertrophy Binge eating disorder (BED) Bipolar disorder Birth differences (congenital anomalies) Bites and stings Bites and stings (sea creatures) Bladder prolapse Bleeding after menopause Blood poisoning Blood pressure (high) Blood pressure (low) Blood-borne viruses (BBVs) Bluebottle stings Body dysmorphic disorder Borderline personality disorder (BPD) Bowel infections Bowel obstruction Bowen's disease Breast engorgement Bronchial asthma Brugada syndrome Bulimia nervosa Campylobacter infection Cancer of the uterus Candidiasis (vaginal) Cardiac failure Carpal tunnel syndrome Cat and dog allergy Cerebral stroke Cervical cancer CF (cystic fibrosis) Charcot-Marie-Tooth disease Charles Bonnet syndrome CHD (coronary heart disease) Chemicals (inhaled) Chest infection Chiari malformation Chikungunya virus Childhood illnesses Childhood obesity Children and depression Cholecystitis (gallbladder inflammation) Chronic fatigue syndrome (CFS) Chronic kidney disease Cirrhosis of the liver Clavicle fracture (broken collarbone) Coeliac disease Cold or flu? (infographic) Colour blindness Compartment syndrome Computer addiction Congenital adrenal hyperplasia Congenital anomalies (birth differences) Congenital disorder Congenital heart disease Congestive heart failure Contact dermatitis Coronary heart disease Costochondritis Cough (whooping) Coughs and colds (in children) Cow's milk allergy Creutzfeldt-Jakob disease Cri du chat syndrome Crohn's disease Cryptosporidiosis Cushing's syndrome Cystic fibrosis Cytomegalovirus (CMV) De Quervain's disease Deep vein thrombosis (DVT) Deficiency (vitamin A) Degenerative arthritis Delirium and dementia Dementia (Aboriginal and Torres Strait Islander people) Dementia (an overview) Dementia (early onset) Dementia (vascular) Depression (melancholic) Depression after pregnancy Depression in children Depression in men Depression in older people Depression in women Depression in young people Dermatitis herpetiformis Dermatomyositis Deviated septum Diabetes (Gestational) Diabetes (type 1) Diabetes (type 2) Diabetic ketoacidosis Diabetic neuropathy Diabetic retinopathy Diffuse idiopathic skeletal hyperostosis Dissociative identity disorder Diverticular disease Dry mouth syndrome Duchenne muscular dystrophy Dupuytren's contracture E. coli infection Early onset dementia Eating disorders Ectopic pregnancy Edwards syndrome Electric shocks and burns Endometrial cancer Enterovirus in children Erectile dysfunction Erythema nodosum Erythromelalgia Essential tremor Eye (objects or chemicals) Eye diseases and conditions Female pattern hair loss Fetal alcohol spectrum disorder Flat feet (fallen arches) Flu (influenza) Food allergies (in children) Food intolerance and testing Fragile X syndrome Frontotemporal dementia Frozen shoulder G6PD deficiency Gastro intestinal illnesses Gastroenteritis (gastro) Gender incongruence Generalised Anxiety Disorder Genetic disorders Genetic disorders guide Genital thrush in males German measles (rubella) Gestational diabetes Giardiasis (giardia) Gilbert's syndrome Glandular fever Gliomas in children Graves' disease Greater trochanteric pain syndrome (GTPS) Groin irritation and infection Group A streptococcal (GAS) infection Group B streptococcal infection Growth disorders Guillain-Barre syndrome Haemochromatosis Haemolytic uraemic syndrome (HUS) Haemophilus influenzae type b (HIB) Hairloss (in men) Hand and finger fractures Hand foot and mouth disease Hansen’s disease Hashimoto's disease Hay fever (a guide) Head lice (pregnancy) Health problems present from birth Heart and cardiovascular conditions Heart valve disease Helicobacter pylori (H.pylori) Hereditary non-polyposis colorectal cancer (HNPCC) Herpes (genital) Herpes zoster (shingles) High blood pressure (Hypertension) High blood sugar Histrionic personality disorder HIV infection and AIDS Hodgkin lymphoma HTLV-1 infection Human metapneumovirus (HMPV) Human papillomavirus (HPV) Human parainfluenza viruses (HPIVs) Huntington’s disease Hurting yourself Hyperglycaemia (high blood sugar) Hyperthyroidism Hypoglycaemia (low blood sugar) IBS (irritable bowel syndrome) Incontinence (urinary) Incontinence – an overview Infectious diseases Infectious mononucleosis Influenza (flu) Ingrown toenails Inguinal hernia Insect bites and stings Invasive staph infections Iodine deficiency Iron deficiency Irritable bowel syndrome (IBS) Is it a cold or the flu? (infographic) Ischaemic heart disease Japanese encephalitis Jaw dislocation JEV (Japanese encephalitis virus) Joint inflammation Kawasaki disease Keratosis pilaris Kidney infection (Pyelonephritis) Kissing disease Klinefelter syndrome Lactose intolerance Learning disabilities Legionnaires' disease Leukaemia in children Lewy body disease Listeria and listeriosis Liver Cirrhosis

Liver conditions and diseases Long QT syndrome Long-sightedness Loss of muscle mass Lou Gehrig's disease Low blood pressure (hypotension) Lymphoma (non-Hodgkin) Lyssavirus (ABLV) Macular degeneration Magnesium deficiency Malabsorption syndromes Male sexual problems Male-pattern baldness Manic depression Marfan syndrome Melancholia (melancholic depression) Memory disorders Men and depression Meniere’s disease Meningococcal disease Menopause (premature and early) Mental health conditions MERS (coronavirus) Mesenteric adenitis Mesothelioma (lung cancer) Metabolic syndrome Metastatic breast cancer Molluscum contagiosum Motor neurone disease (MND) Mountain sickness Mouth and tongue cuts Mouth diseases and conditions Mouth sores and ulcers Movement disorders Mpox (Monkeypox) MS (multiple sclerosis) Multiple myeloma Multiple personality disorder Multiple sclerosis (MS) Murray Valley encephalitis Muscle mass (loss of) Muscular dystrophy Myalgic Encephalomyelitis (ME) Myasthenia gravis Myocardial infarction Necrotising fasciitis Nephrotic syndrome Nervous system diseases Neuroblastoma in children Neurodiversity and neurodivergence Neuroendocrine cancers Neurofibromatosis Non-Hodgkin lymphoma Non-Hodgkin lymphoma in children Noonan syndrome Norovirus infection Nut allergies (in children) Obesity in children Object (swallowed accidentally) Objects in the ear Objects in the nose Objects or chemicals in the eye Obsessive-compulsive disorder (OCD) Obstructive sleep apnoea Oesophageal cancer Older people and depression Ovarian torsion Overactive thyroid Overweight children Paget's disease of bone Pain (back overview) Pain (tailbone) Pain (upper back) Painful periods Pancreatic cancer Panic attacks and panic disorder Paratyphoid and typhoid fever Parkinson's disease Peanut allergies (in children) Pelvic inflammatory disease (PID) Period problems Peripheral nerve disorders Peripheral neuropathy Peripheral vascular disease Personality disorder Phenylketonuria (PKU) Phobias (an overview) Pilonidal disease Pityriasis rosea Placenta praevia Plantar fasciitis Pleural effusion Pneumococcal disease Polio (poliomyelitis) Polycystic ovarian syndrome (PCOS) Polymyalgia rheumatica Post-nasal drip Post-traumatic stress disorder (PTSD) Posterior prolapse Postnatal depression (PND) Postural orthostatic tachycardia syndrome (POTS) Potassium deficiency Prader-Willi syndrome Premature and early menopause Premenstrual syndrome (PMS) Primary aldosteronism Primary amoebic meningoencephalitis Prolapsed uterus Prostate cancer Psoriatic arthritis Pulmonary embolism Pulmonary fibrosis Pulmonary hypertension Raynaud's phenomenon Refractive errors Respiratory syncytial virus (RSV) Resting heart rate Restless legs syndrome Retinal detachment Retinitis pigmentosa Rheumatic fever Rheumatic heart disease Rheumatoid arthritis Roseola infantum Ross River virus infection Rotator cuff injury Rotavirus infection Rubella (German measles) SARS (Severe acute respiratory syndrome) Schizoaffective disorder Seafood allergies Seasonal affective disorder (SAD) Seasonal flu (influenza) Seborrhoeic dermatitis Seizures (epilepsy) Sepsis (invasive staph infections) Sepsis and septicaemia Septic arthritis Sever's disease Severe acute respiratory syndrome (SARS) Sexual problems (male) Sexually transmitted infections (STIs) Shigella (bowel infection) Shocks (electric) Shopping addiction Short-sightedness Sickle cell anaemia Sinusitis (rhinosinusitis) Sjögren’s syndrome Skin conditions Skin staph infections Skin tags (acrochordons) Slapped cheek syndrome Sleep paralysis Social behaviour disorders Soft tissue sarcoma in children Sore throats (in children) Speech problems Spinal cord injuries Spinal disc problems Spinal muscular atrophy (SMA) Spinal stenosis Spondylolisthesis Sprains and strains Squamous cell carcinoma (SCC) Staph infections Staph infections (invasive) Staph infections (skin) Sticky eye (conjunctivitis) Stings and bites (sea creatures) STIs (sexually transmitted infections) Strains and sprains Streptococcal infection Swallowed object (swallowed accidentally) Tailbone (coccyx) pain and injury Tay-Sachs disease TB (tuberculosis) Temporomandibular joint dysfunction Tension headache Testicular cancer Testicular torsion Threadworms (pinworms) Threadworms (worms) Thrombocytopenia Thrush (in males) Thrush (vaginal) Thunderstorm asthma Thyroid problems TIA (Transient ischaemic attack) Toenail infection Tongue and mouth cuts Torticollis (wry neck) Tourette syndrome Toxic fumes (inhaled) Toxic shock syndrome (TSS) Transient ischaemic attack (TIA) Transverse myelitis Tree nut allergy Trichotillomania Trigeminal neuralgia TSS (toxic shock syndrome) Tuberculosis (TB) Tuberous sclerosis Tumours (cancer) Turner syndrome Type 1 diabetes Type 2 diabetes Typhoid and paratyphoid fever Ulcerative colitis Ulcers (stomach) Ulcers and mouth sores Ulnar nerve entrapment Undescended testicles Upper back pain (thoracic pain) Urinary incontinence Urinary tract infection (UTI) Uterine disorders UTI (Urinary tract infection) Vaccine preventable diseases Vaginal bleeding Vaginal problems Vascular dementia Vascular disease (peripheral) Venereal diseases Vestibular schwannoma Viral haemorrhagic fevers Viral pneumonia Vision impairment Vitamin A deficiency Vitamin B deficiency Vitamin C deficiency Vitamin D deficiency Vitamin K deficiency Von Willebrand disease Warts (genital) Wernicke encephalopathy Wolff-Parkinson-White syndrome (WPW) Women and depression Work-related stress Young people and depression Younger onset dementia Zinc deficiency Zoster (shingles) Sorry, there is no symptom information under this letter. 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