Immune system
Allergic conjunctivitis
Non-infectious · Acute or chronic
Inflammation of the clear lining of the eye caused by an allergic reaction, leading to itchy, red, watery eyes.
GeoMed · Immune system conditions
Immune system conditions
Cells and organs that defend the body against infection.
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Immune system conditions
Immune system
Immune system
Allergic rhinitis (hay fever)
Non-infectious · Chronic
An allergic reaction in the nose causing sneezing, a runny or blocked nose and itching, often triggered by pollen or dust mites.
Immune system
Alopecia areata
Non-infectious · Acute or chronic
An autoimmune condition in which the immune system attacks hair follicles, causing round patches of hair loss.
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
Ankylosing spondylitis
Non-infectious · Chronic
A long-term inflammatory arthritis that mainly affects the spine and pelvis, causing back pain and stiffness that improve with movement.
Blood (haematology)
Antiphospholipid syndrome
Non-infectious · Chronic
An autoimmune condition in which antibodies make the blood more likely to clot, causing thrombosis and pregnancy complications.
Immune system
Atopic dermatitis (eczema)
Non-infectious · Chronic
A common long-term skin condition causing dry, itchy, inflamed skin that comes and goes in flare-ups.
Blood (haematology)
Autoimmune haemolytic anaemia
Non-infectious · Acute or chronic
A condition in which the immune system makes antibodies that destroy the body's own red blood cells, causing anaemia.
Digestive system
Autoimmune hepatitis
Non-infectious · Chronic
A long-term liver disease in which the immune system attacks liver cells, causing inflammation that can lead to cirrhosis if untreated.