AmyloidosisSupportNetwork.org is a dedicated patient-to-patient support community for families affected by Amyloidosis. Amyloidosis is a disease that occurs when amyloid proteins build up in your organs. Amyloid is an abnormal protein usually produced by cells in your bone marrow that can be deposited in any tissue or organ. Amyloidosis is rare, and the exact cause is often unknown. Treatments are available to help you manage your amyloidosis symptoms.