Fever, Unintentional weight loss: 35 Possible Causes
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What causes fever and unintentional weight loss? 35 possible conditions

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

21

Brucellosis

Brucellosis is a disease caused by bacteria from the genus Brucella. Learn more about how this condition is spread, symptoms, and treatment.

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22

Pulmonary Actinomycosis

Pulmonary actinomycosis is a rare bacterial lung infection. It's also known as thoracic actinomycosis.

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23

Infective Endocarditis

Infective endocarditis is an infection in the heart valves or endocardium. It can lead to stroke and heart failure. Read about the symptoms and treatments.

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24

Burkitt's Lymphoma

Burkitt's lymphoma is a relatively rare and aggressive form of non-Hodgkin lymphoma.

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25

Leishmaniasis

Leishmaniasis is a parasitic disease caused by the Leishmania parasite found in sand flies.

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26

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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27

Ankylosing Spondylitis

Ankylosing spondylitis is a form of arthritis that primarily affects your spine. It causes severe inflammation of the vertebrae that might eventually lead to chronic pain and disability. In more advanced cases, th...

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28

Temporal Arteritis

Temporal arteritis occurs when the temporal arteries, which supply blood to the head and brain, become inflamed or damaged. It's also called giant cell arteritis.

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29

Valley Fever (Coccidioidomycosis)

Valley fever is an infection caused by the Coccidioides fungus. Learn about valley fever symptoms, causes, treatment, prevention, and more.

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30

Aspergillosis

Aspergillosis is an infection, allergic reaction, or fungal growth caused by the Aspergillus fungus.

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31

Addisonian Crisis (Acute Adrenal Crisis)

This condition is considered a medical emergency. Urgent care may be required.

An Addisonian crisis occurs when levels of cortisol suddenly drop. Learn more about an Addisonian crisis, including symptoms, risk factors, and treatment.

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32

Chronic Myelogenous Leukemia (CML)

Leukemia is a type of cancer that starts in the blood or blood-forming tissues. There are many different types of leukemia, and treatment is different for each one. Chronic leukemias are slower growing than acut...

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33

Acute Lymphocytic Leukemia

ALL is a cancer in your blood and bone marrow that occurs when abnormal cells grow out of control. Read more about this disease in children and adults.

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34

Acute Myeloid Leukemia

Acute myeloid leukemia (AML) is a cancer of the blood and bone marrow. Learn about your risk factors and treatment options.

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35

Chronic Lymphocytic Leukemia

Chronic lymphocytic leukemia is a form of cancer that affects your lymphocytes, a type of white blood cell. Learn about symptoms and treatment.

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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.
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