What causes carcinoid syndrome?

Carcinoid syndrome is caused by carcinoid tumors, although it is unclear what causes the tumors in the first place. These tumors produce chemicals (often serotonin) that cause the symptoms of carcinoid syndrome.
Carcinoid syndrome only occurs in less than ten percent of people who have carcinoid tumors, and it usually occurs in only the very advanced stages of the cancer. This is because the liver is able to get rid of the excess chemicals until one of two things happens: either the tumors spread to the liver or the level of chemicals becomes too high.

Continue Learning about Endocrine System

Endocrine System

Your endocrine system works with your nervous system to control important bodily functions. The endocrine systems responsibilities include regulating growth, sexual development and function, metabolism and mood. The endocrine syst...

em also helps give your body the energy it needs to function properly. Endocrine glands secrete hormones into the bloodstream. Hormones are considered chemical messengers, coordinating your body by transferring information from one set of cells to another. Your endocrine system health can be affected by hormone imbalances resulting from impaired glands. A hormone imbalance can cause problems with bodily growth, sexual development, metabolism and other bodily functions. Endocrine system diseases or conditions include diabetes, growth disorders and osteoporosis.

Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.