The only definitive way to determine whether a polyp is cancerous is through a biopsy, according to the National Cancer Institute. Doctors remove polyps that they find during the course of a colonoscopy and biopsy them to see if cancerous tissue is present.
Some stomach, or gastric, polyps are cancerous while others are not, according to Mayo Clinic. The majority of them do not become malignant. However, adenomas, the rarest kind, are most likely to become cancerous. These masses of glandular cells on the inside lining of the stomach are linked to infl
People with polyps may experience rectal bleeding, stool color change, anemia due to iron deficiency, nausea and vomiting, according to Mayo Clinic. Polyps also manifest in bowel habit changes and abdominal pain. However, polyps typically don't result in symptoms.
As of 2014, doctors do not cite any absolute specific causes of colorectal polyps, but research suggests they may be caused by some genetic factors or prior conditions, notes Healthline. Additionally, those with certain unhealthy lifestyles or habits may be at an increased risk of developing polyps.
Most polyps are benign or noncancerous, according to the American Cancer Society. However, some types of polyps can lead to colon cancer, depending on the type of polyp and certain risk factors.
According to the Mayo Clinic, uterine polyps are often non-cancerous, or benign. Also known as endometrial polyps, uterine polyps are growths on the inner wall of the uterus that extend into the uterine cavity. They are caused by an overgrowth of cells within the uterine lining.
Uterine polyps are either benign, precancerous or cancerous, and benign uterine polyps do not always become cancerous, according to Mayo Clinic. A woman can have a single polyp or several polyps ranging in size from a few millimeters to several centimeters, and most are benign.
Both flat and protruding polyps can develop into cancer, according to colon cancer expert Suzanne Dixon for About.com. The flat polyps, also called sessile polyps, rest on the mucus membrane inside the colon. Unlike the protruding, or pedunculated, polyps that look like mushrooms, flat polyps do not
Lung nodules rarely produce any symptoms. However, in certain cases, symptoms may include chronic cough, wheezing and shortness of breath. Lung nodules are small growths that form from tissue, states Mayo Clinic.
The cause of colon polyps is unknown as of October 2014, according to Healthline and the American Society for Gastrointestinal Endoscopy. However, risks for developing colon polyps include having a family history of them, a history of ovarian or uterine cancer, having a high-fat and low-fiber diet a