What causes rectal bleeding during pregnancy?

Aug 24, 2022 Source: Cainiu Health
Disease description:

My sister is pregnant and usually suffers from constipation with bleeding. I'm not sure what's going on. What causes bowel bleeding during pregnancy?

Doctor's answer (1)
Dr. Cheng Yicheng
Rectal bleeding during pregnancy is usually caused by hemorrhoids or similar conditions. During pregnancy, women's physiological changes often increase abdominal and pelvic pressure, which can obstruct blood circulation around the rectum and anal canal, leading to the development of hemorrhoids. If the bleeding is not severe, specific treatment may not be necessary. Maintaining regular bowel movements and taking oral medications or applying hemorrhoid ointments are generally sufficient.