MedlinePlus Health Topics
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Amyloidosis
Source: MedlinePlus Health Topics, U.S. National Library of Medicine
Last synced 8/9/2026Status: primary verified
Amyloidosis occurs when abnormal proteins called amyloids build up and form deposits. The deposits can collect in organs such as the kidney and heart. This can cause the organs to become stiff and unable to work the way they should. There are three main types of amyloidosis: Primary - with no known cause Secondary - caused by another disease, including some types of cancer Familial - passed down through genes Symptoms can vary, depending upon which organs are affected. Treatment depends on the type of amyloidosis you have. The goal is to help with symptoms and limit the production of proteins. If another disease is the cause, it needs to be treated.
Educational only
This information is for general education and is not medical advice. Always talk to a licensed U.S. clinician about your situation, medications, or treatment decisions.