Infection

Very common

Invasion of microorganisms such as viruses, bacteria, and protozoa. Eg: Flu, malaria, strep throat

Symptoms may include:

• Fever
• Fatigue
• Body pain
• High lymphocyte count

Arthritis

Very common

A condition with swelling and tenderness of one or more joints. The common symptom includes pain and stiffness in joints.

Symptoms may include:

• Joint pain- knee or hip pain
• Swelling
• High lymphocyte count...

Leukemia

Rare

A type of cancer which affects the production and function of blood cells. This causes swollen lymph nodes, recurrent nosebleeds, tiredness, frequent infections, weight loss, bleeding, and bone pain.

Symptoms may include:

• Swollen lymph nodes especially in the neck and armpits
• Pain in bones
• Night sweats - excessive sweating, especially at night...

Lymphoma

Very rare

A cancer of the lymphatic system of the body involving immune cells. This causes swelling of lymph nodes in neck, armpit or groin, fever, night sweats, difficulty in breathing and weight loss.

Symptoms may include:

• Painless enlargement of lymph nodes, particularly in the neck (cervical lymphadenopathy), armpit, and groin
• Fatigue
• Fever and/or chills...