Internal hemorrhoids, anal fissures, rectal and colon cancer, peptic ulcers, and gastrointestinal infections are some causes of rectal bleeding in women. Rectal bleeding occurs when blood vessels found under the lining of the digestive tract rupture, releasing blood that passes out after a bowel movement, as stated by WebMD.
Internal hemorrhoids are common in women due to the risk of pregnancy, labor and delivery, according to WebMD. As the fetus grows in size, it pushes against engorged pelvic blood vessels, which become prone to rupture. Other conditions that increase the risk of hemorrhoids include being 50 years or older, obesity, prolonged constipation and heart disease.
Anal fissures result from trauma to the anus and anal region. The cause can be hard stool, prolonged diarrhea and trauma to the perineum during childbirth as claimed by MedicineNet. Other causes include anal intercourse, rectal exam or inserting a foreign object in the rectum. In contrast to hemorrhoids, anal fissures affect women of all ages, even young, healthy ones.
Rectal bleeding can manifest as small blood spots on toilet tissue or a few drops of blood after a bowel movement. Pain in the anal area is also a common symptom, as reported by WebMD.