Body ache, Fatigue: 34 Possible Causes
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What causes body ache and fatigue? 34 possible conditions

See a list of possible causes in order from the most common to the least.


Cold and Flu Overview

Common colds and influenza are contagious infections that affect the respiratory system. Both are airborne illnesses, spread through coughing and sneezing. Shared symptoms include headache, cough, sore throat, and more.

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CFS (Chronic Fatigue Syndrome)

Chronic fatigue syndrome (CFS) is a debilitating disorder characterized by extreme tiredness that can't be explained by an underlying medical condition.

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What is Fibromyalgia?

Fibromyalgia is a chronic disorder characterized by widespread, unexplained pain in tender points in muscles and joints, including the head, neck, and sides of hips.

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Common Cold Overview

The common cold is a virus that involves symptoms like sneezing, a runny nose and a headache. Learn the causes, symptoms and treatments for the common cold now!

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Low Blood Potassium

Hypokalemia occurs when the blood's potassium levels are too low. A normal level of potassium is 3.6-5.2 millimoles per liter. Levels below 3.6 are considered low.

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Anorexia Nervosa

Anorexia nervosa is an eating disorder that can result in severe weight loss. Learn more about warning signs and treatment.

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Systemic Lupus Erythematosus

Systemic lupus erythematosus, the most common form of lupus, is a chronic autoimmune disease that can cause severe fatigue and joint pain. Learn more about it.

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Rheumatoid Arthritis Overview

Rheumatoid arthritis is an autoimmune disease. It causes joint problems. In autoimmune diseases, the immune system mistakes the body's own cells for invaders.

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Lyme Disease

Lyme disease is an infectious condition transmitted via tick bite. A "bull's eye" rash at the site of the bite is an early symptom of this disease.

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Colorado Tick Fever

Colorado tick fever is a viral infection transmitted through a bite from an infected tick. Learn about Colorado tick fever symptoms, diagnosis, and treatment.

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Urinary Tract Infection

UTIs are usually caused by bacteria and can occur in any part of the urinary tract. Symptoms of upper UTIs include pain in the upper back, chills, fever, and nausea.

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Bleeding or spotting, increased need to urinate, tender breasts, fatigue, nausea, and missed period are signs of pregnancy.

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Rhabdomyolysis is a breakdown of muscle fibers that occurs due to muscle injury. Learn more about this condition.

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Polymyalgia Rheumatica

Polymyalgia rheumatica is an inflammatory disorder that causes muscle pain and stiffness. Learn about its symptoms, diagnosis, and treatment.

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PMS (Premenstrual Syndrome)

Premenstrual syndrome causes a wide variety of emotional and physical symptoms. Learn more about it.

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Trichinosis is a disease caused by a roundworm infection. Learn about its symptoms, diagnosis, treatment, and how to prevent it.

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Multiple Sclerosis Overview

Multiple sclerosis (MS) is a chronic autoimmune disease that affects the central nervous system. MS can cause varying symptoms that appear with a wide range of severity, from mild discomfort to complete disability.

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West Nile Virus Infection (West Nile Fever)

Spread by mosquitos, West Nile virus symptoms can vary in severity. Diarrhea and abdominal pain usually appears within two weeks of infection.

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Peripheral Neuropathy

Peripheral neuropathy is a disorder that occurs when your peripheral nerves malfunction because they're damaged.

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Endocarditis, also known as infective endocarditis, is a condition in which your heart's inner lining is inflamed. Learn about causes and symptoms.

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This feature is for informational purposes only and should not be used to diagnose.
Please consult a healthcare professional if you have health concerns.