Bowel Habit Changes
The ovaries are located quite close to the large intestine in the upper pelvis and lower abdomen. This close proximity can make the bowels a particularly susceptible area for cancer cell invasion. When ovarian cancer invades the bowel tissues, several new symptoms will appear that are related to intestinal damage, inflammation, and functional impairment. Cancer that has gotten into the bowels can cause patients to have diarrhea if it causes damage to the lining of the large intestine. The lining of the large intestine absorbs fluid from the stool before it exits the body.
Cancer that invades an individual's bowels from the ovaries can cause a full or partial obstruction of the colon, which causes stool to stay inside the intestine for too long. When stool does not move through the digestive tract fast enough, the large intestine may absorb too much fluid. This mechanism can cause the patient to become constipated.