List of diseases (A)

This is a list of diseases starting with the letter "A".

• ACAM2000
• ACDC (medicine)
• AFF2
• AIDS dysmorphic syndrome
• ALS
• ATR-X syndrome
• Aarskog–Scott syndrome
• Aase syndrome
• Abdallat–Davis–Farrage syndrome
• Abdominal aura
• Abdominal compartment syndrome
• Abetalipoproteinemia
• Abnormal basal metabolic rate
• Abruzzo–Erickson syndrome
• Achard–Thiers syndrome
• Acheiropodia
• Achondroplasia
• Achondroplasia in children
• Acorn cyst sign
• Acquired generalized lipodystrophy
• Acrofrontofacionasal dysostosis
• Acromegaly
• Acromesomelic dysplasia
• Actinic conjunctivitis
• Activation syndrome
• Acute (medicine)
• Acute HME syndrome
• Acute bronchitis
• Acute chest syndrome
• Acute hemorrhagic conjunctivitis
• Acute pancreatitis
• Acute radiation syndrome
• Acute retroviral syndrome
• Acyl-CoA oxidase deficiency
• Adams–Nance syndrome
• Adams–Oliver syndrome
• Adams–Stokes syndrome
• Addison's disease
• Adducted thumb syndrome
• Adenitis
• Adenoiditis
• Adenosine deaminase 2 deficiency
• Adiposogenital dystrophy
• Adolescent idiopathic scoliosis
• Adult-onset Still's disease
• Advanced sleep phase disorder
• Aerotoxic syndrome
• Agammaglobulinemia-microcephaly-craniosynostosis-severe dermatitis syndrome
• Age of onset
• Agenesis of the vena cava
• Aging-associated diseases
• Al Gazali Sabrinathan Nair syndrome
• Alabama rot
• Alagille syndrome
• Albright's hereditary osteodystrophy
• Alcohol and cancer
• Alcohol intolerance
• Alcoholic hepatitis
• Alexander disease
• Alfalfa pests
• Alien hand syndrome
• Allan–Herndon–Dudley syndrome
• Allergic response
• Allopurinol hypersensitivity syndrome
• Alopecia contractures dwarfism intellectual disability syndrome
• Alport syndrome
• Alström syndrome
• Alternating hemiplegia
• Alternating hemiplegia of childhood
• Aluminium phosphide poisoning
• Alvarez' syndrome
• Alzheimer's disease
• Amaurosis congenita, cone-rod type, with congenital hypertrichosis
• Ametropic amblyopia
• Amnion nodosum
• Amyand's hernia
• Anaplastic astrocytoma
• Anaplastic oligodendroglioma
• Animal attack
• Aniridia renal agenesis psychomotor retardation
• Anisochromia
• Anisomastia
• Anomalous left coronary artery from the pulmonary artery
• Anorectal anomalies
• Anterior compartment syndrome
• Anterior interosseous syndrome
• Anterior segment mesenchymal dysgenesis
• Antibiotic sensitivity testing
• Anticonvulsant hypersensitivity syndrome
• Antidepressant discontinuation syndrome
• Anton syndrome
• Aortic Arch Syndrome
• Aortocaval compression syndrome
• Aplasia
• Appendicitis
• Aprosencephaly cerebellar dysgenesis
• Arakawa's syndrome II
• Arginine:glycine amidinotransferase deficiency
• Aromatic L-amino acid decarboxylase deficiency
• Arteritis
• Arthritis
• Arthrogryposis multiplex with deafness, inguinal hernias, and early death
• Arthrogryposis–renal dysfunction–cholestasis syndrome
• Artificial turf–cancer hypothesis
• Ascending cholangitis
• Ascher's syndrome
• Asherman's syndrome
• Ashman phenomenon
• Asthma
• Asthma-COPD overlap
• Asymptomatic carrier
• Atelosteogenesis type I
• Atherosclerosis
• Athletic heart syndrome
• Atony
• Atresia
• Atrophic gastritis
• Atrophic vaginitis
• Atypical hemolytic uremic syndrome
• Atypical pulmonary carcinoid tumour
• Auditory processing disorder
• Autoimmune polyendocrine syndrome type 1
• Autoimmune polyendocrine syndrome type 2
• Autoimmune polyendocrine syndrome type 3
• Autophagic vacuolar myopathy
• Autosomal dominant cerebellar ataxia, deafness, and narcolepsy
• Autosomal dominant partial epilepsy with auditory features
• Autosomal dominant porencephaly type I
• Autosomal recessive axonal neuropathy with neuromyotonia
• Autosomal recessive bestrophinopathy
• Avellis syndrome
• Avulsion injury
• Axillary lymphadenopathy
• Azzopardi phenomenon