The global medical misdiagnosis database

The myMisdiagnosis.com project is a global medical misdiagnosis database resource, designed to help patients and carers explore the possibilities for misdiagnosis, and to increase awareness about the issue of medical diagnostic error in general.

Search using the search box above, or head over to the A-Z list of diagnoses, and search for possible misdiagnoses.

Reports indicate that up to 1 in 7 medical diagnoses are incorrect. Additionally it is reported that up to 1 in 3 of incorrect diagnoses could result in serious injury or death.

So we can conclude that whilst most medical diagnoses are accurate, a significant number are not. Medical diagnostic errors happen.

Reviewing the incorrect diagnosis, the symptoms that led the practitioner to that conclusion, and the correct eventual diagnosis - patients or their carers can evaluate their situation and raise suggestions or foster discussion with their doctors or specialists.

Check your diagnosis

Common diagnoses that are sometimes misdiagnosed are listed below. Alternatively use our search box to find your own diagnosis, or the A-Z list of diagnoses directory.

Abdominal Aortic Aneurysm

Acute Cholecystitis

Acute Lymphoblastic Leukaemia

Acute Myeloid Leukaemia

Acute Pancreatitis

Addison's Disease

Alcohol-related Liver Disease

Allergic Rhinitis

Anal Cancer

Anaphylaxis

Angioedema

Ankylosing Spondylitis

Anorexia Nervosa

Anxiety

Aortic Aneurysm And Dissection

Appendicitis

Arterial Thromboembolism

Arthritis

Asbestosis

Asthma

Atopic Eczema

Attention Deficit Hyperactivity Disorder (ADHD)

Autistic Spectrum Disorder (ASD)

Bacterial Vaginosis

Benign Prostate Enlargement

Bile Duct Cancer (cholangiocarcinoma)

Bipolar Disorder

Bladder Cancer

Blood Poisoning (sepsis)

Bone Cancer

Bowel Cancer

Bowel Polyps

Brain Stem Death

Brain Tumours

Breast Cancer

Breast Cancer (female)

Breast Cancer (male)

Bronchiectasis

Bronchitis

Bunion

Carcinoid Syndrome And Carcinoid Tumours

Celiac Disease

Cellulitis

Cervical Cancer

Chickenpox

Chilblains

Chlamydia

Chronic Fatigue Syndrome

Chronic Lymphocytic Leukaemia

Chronic Myeloid Leukaemia

Chronic Obstructive Pulmonary Disease

Chronic Pancreatitis

Cirrhosis

Clostridium Difficile

Coeliac Disease

Cold Sore

Colorectal Cancer

Common Heart Conditions

Congenital Heart Disease

Conjunctivitis

Constipation

Coronavirus (COVID-19)

Crohn's Disease

Croup

Cystic Fibrosis

Cystitis

Dementia

Dementia With Lewy Bodies

Dental Abscess

Depression

Dermatitis Herpetiformis

Diabetes

Discoid Eczema

Diverticular Disease And Diverticulitis

Dysphagia (swallowing Problems)

Dystonia

Ebola Virus Disease

Endocarditis

Endometriosis

Epilepsy

Ewing Sarcoma

Fibroids

Fibromyalgia

Flu

Food Poisoning

Gallbladder Cancer

Gallstones

Ganglion Cyst

Gastro-oesophageal Reflux Disease (GORD)

Gastroenteritis

Genital Herpes

Genital Warts

Glandular Fever

Gonorrhoea

Gout

Gum Disease

Haemorrhoids (piles)

Hairy Cell Leukaemia

Hand, Foot And Mouth Disease

Head And Neck Cancer

Heart Attack

Heart Failure

Hepatitis A

Hepatitis B

Hepatitis C

Hiatus Hernia

HIV

Hodgkin Lymphoma

Huntington's Disease

Hyperglycaemia (high Blood Sugar)

Hypoglycaemia (low Blood Sugar)

Idiopathic Pulmonary Fibrosis

Impetigo

Indigestion

Iron Deficiency Anaemia

Irritable Bowel Syndrome (IBS)

Irritable Hip

Kaposi's Sarcoma

Kidney Cancer

Kidney Infection

Kidney Stones

Labyrinthitis

Lactose Intolerance

Langerhans Cell Histiocytosis

Laryngeal (larynx) Cancer

Laryngitis

Lichen Planus

Liver Cancer

Liver Disease

Liver Tumours

Lung Cancer

Lupus

Lyme Disease

Lymphoedema

Lymphogranuloma Venereum (LGV)

Malaria

Malignant Brain Tumour (cancerous)

Malnutrition

Measles

Melanoma

Meniere's Disease

Meningitis

Meningitis/encephalitis

Menopause

Mesothelioma

Middle Ear Infection (otitis Media)

Migraine

Monkeypox

Motor Neurone Disease (MND)

Mouth Cancer

Mouth Ulcer

Multiple Myeloma

Multiple Sclerosis

Multiple Sclerosis (MS)

Mumps

Nasal And Sinus Cancer

Nasopharyngeal Cancer

Neuroblastoma

Neuroblastoma: Children

Neuroendocrine Tumours

Non-alcoholic Fatty Liver Disease (NAFLD)

Non-Hodgkin Lymphoma

Norovirus

Obsessive Compulsive Disorder (OCD)

Oesophageal Cancer

Oral Thrush In Adults

Osteoarthritis

Osteoporosis

Osteosarcoma

Otitis Externa

Ovarian Cancer

Ovarian Cyst

Overactive Thyroid

Paget's Disease Of The Nipple

Pancreatic Cancer

Panic Disorder

Parkinson's Disease

Pelvic Inflammatory Disease

Pelvic Organ Prolapse

Peripheral Neuropathy

Personality Disorder

Pleurisy

Pneumonia

Polymyalgia Rheumatica

Post-traumatic Stress Disorder (PTSD)

Pressure Ulcers

Prostate Cancer

Psoriasis

Psoriatic Arthritis

Raynaud's Phenomenon

Reactive Arthritis

Restless Legs Syndrome

Retinoblastoma

Rhabdomyosarcoma

Rheumatoid Arthritis

Ringworm And Other Fungal Infections

Rosacea

Scabies

Scarlet Fever

Schizophrenia

Sepsis

Septic Shock

Shingles

Sickle Cell Disease

Sinusitis

Sjogren's Syndrome

Skin Cancer (melanoma)

Skin Cancer (non-melanoma)

Slapped Cheek Syndrome

Soft Tissue Sarcoma

Soft Tissue Sarcomas

Spinal Abscess

Spleen Problems And Spleen Removal

Stomach Cancer

Stomach Ulcer

Stroke

Swollen Glands

Syphilis

Testicular Cancer

Threadworms

Thrush

Thrush In Men

Thyroid Cancer

Tonsillitis

Toothache

Transient Ischaemic Attack (TIA)

Trichomonas Infection

Trigeminal Neuralgia

Tuberculosis (TB)

Type 1 Diabetes

Type 2 Diabetes

Ulcerative Colitis

Underactive Thyroid

Urinary Tract Infection (UTI)

Urticaria (hives)

Vaginal Cancer

Vaginal Thrush

Varicose Eczema

Venous Leg Ulcer

Venous Thromboembolism

Vulval Cancer

Whooping Cough

Wilms Tumour

Womb (uterus) Cancer

Yellow Fever