Mental health
Adjustment disorder
Non-infectious · Acute
An emotional or behavioural reaction to a stressful life event that is stronger or lasts longer than expected and affects daily life.
GeoMed · Disease encyclopedia
Disease encyclopedia
Causes, symptoms, diagnosis, treatment approaches and prevention for common conditions. Browse A–Z, by body system, or search.
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Disease encyclopedia
Mental health
Nervous system
Alcohol withdrawal
Non-infectious · Acute
Symptoms that occur when someone who is physically dependent on alcohol suddenly stops or cuts down, ranging from shakiness to life-threatening seizures and delirium.
Skin (integumentary system)
Alopecia (telogen effluvium)
Non-infectious · Acute
Temporary, widespread hair shedding that starts a few months after a stress to the body, such as illness, childbirth or crash dieting.
Immune system
Anaphylaxis
Non-infectious · Acute
A severe, life-threatening allergic reaction that develops rapidly and needs immediate treatment with adrenaline.
Immune system
Angioedema
Non-infectious · Acute
Swelling deep under the skin, often around the eyes, lips, tongue or throat, caused by fluid leaking from small blood vessels.
Musculoskeletal system
Ankle fracture
Non-infectious · Acute
A break in one or more of the bones that form the ankle joint, usually caused by twisting, a fall or a direct blow.
Musculoskeletal system
Ankle sprain
Non-infectious · Acute
A stretch or tear of the ligaments that support the ankle, usually from rolling or twisting the foot.
Musculoskeletal system
Anterior cruciate ligament tear
Non-infectious · Acute
A tear of one of the main ligaments inside the knee, usually from a sudden twist, pivot or landing during sport.
Cardiovascular system
Aortic dissection
Non-infectious · Acute
A tear in the inner layer of the aorta that allows blood to split the layers of the artery wall, a life-threatening emergency.
Digestive system
Appendicitis
Non-infectious · Acute
Inflammation of the appendix, a small pouch attached to the large bowel, which usually causes worsening pain in the lower right abdomen.
Respiratory system
Asthma attack (acute severe asthma)
Non-infectious · Acute
A sudden worsening of asthma in which the airways narrow severely, causing breathlessness, wheeze and difficulty speaking; it can be life-threatening.
Respiratory system
Atelectasis
Non-infectious · Acute
Partial or complete collapse of part of the lung, often after surgery, a blockage in the airway or pressure on the lung.
Reproductive system
Bartholin's cyst
Non-infectious · Acute
A fluid-filled swelling at the entrance to the vagina caused by a blocked Bartholin's gland, which can become infected and form an abscess.
Nervous system
Bell's palsy
Non-infectious · Acute
Sudden weakness or paralysis of the muscles on one side of the face, caused by inflammation of the facial nerve.
Cardiovascular system
Cardiovascular system
Cardiac tamponade
Non-infectious · Acute
Fluid around the heart that squeezes it and stops it filling.
Musculoskeletal system