Doctors don't know for sure why people get them. But a few things may put you at a higher risk.

Genetic disease. You may get carcinoid tumors if you have an illness called multiple endocrine neoplasia type 1 (MEN1). It's a disease that's passed down through your family. About 10% of these tumors are due to MEN1.

Another condition that can raise your risk for them is neurofibromatosis type 1.

• Race:More African-Americans than whites get carcinoid tumors in the GI tract.
• Gender:Women are slightly more likely than men to have this type of cancer.
• Age:Most people are diagnosed with carcinoid tumors in their 40s or 50s.
• Conditions: You're more likely to get a tumor in your stomach if you have a disease like pernicious anemia or Zollinger-Ellison syndrome, which changes the amount of acid your stomach makes.

Updated:: 15/11/2021 []