Factors That Can Affect Your Period

8. Polyps

Uterine polyps, which are an overgrowth of endometrial tissue, can change your period. Polyps range from very small to quite large and may develop singly or in a cluster. While typically noncancerous, they can wreak havoc on the menstrual cycle.

Polyps most often develop in women between 40 and 50, though they also occur in younger women and make pregnancy a challenge. Being overweight and having high blood pressure both increase the risk of developing uterine polyps [Cleveland Clinic].