Deep Disease
Is rectal bleeding during your period a sign of endometriosis?
The short answer
Yes, rectal bleeding that predictably happens during your period can be a sign of bowel endometriosis. But it is not specific to endometriosis: hemorrhoids, fissures, inflammatory bowel disease, polyps and other GI conditions are other possible explanations.
Yes, rectal bleeding that predictably happens during your period can be a sign of bowel endometriosis, especially when endometriosis involves the rectum or sigmoid colon. Many patients also notice pain with bowel movements, deep pelvic pain, bloating, alternating constipation and diarrhea, or symptoms that flare in a cyclical pattern.
That said, rectal bleeding isn’t specific to endometriosis, and it’s important not to assume that’s the only explanation. Hemorrhoids, fissures, inflammatory bowel disease, polyps, and other GI conditions can overlap with or be mistaken for endometriosis. These conditions can be hard to distinguish based on symptoms alone without a thoughtful workup.
In our practice, we take bleeding symptoms seriously and evaluate the whole picture: the timing of your bleeding, associated bowel and pelvic symptoms, exam findings, and, when helpful, expertly interpreted imaging such as ultrasound or MRI to look for suspected bowel involvement and related conditions. If endometriosis is suspected, we can talk through what diagnosis and treatment may involve, including minimally invasive excision when appropriate. Reach out to schedule a consultation with our team.
Where to go from here
Understand it, compare it with what you're feeling, then talk it through with us.
Step 1 · Understand
Understand the condition
Step 2 · Compare
Symptoms it can relate to
Step 3 · Speak with Us
Bleeding During Period? Get Answers
Rectal bleeding during your period can indicate bowel endometriosis, especially with cyclic pain and bowel changes. Our specialists can help diagnose and create a personalized care plan for your symptoms.
Questions people ask next
All deep disease questionsWhat are the symptoms of bowel endometriosis?
Bowel endometriosis can cause lower abdominal or pelvic pain, bloating, constipation and/or diarrhea, nausea, and pain with bowel movements. Symptoms may fluctuate with your menstrual cycle, and some people notice rectal bleeding, especially around menstruation.
Do bowel endometriosis symptoms require a colonoscopy?
Bowel endometriosis symptoms do not usually require a colonoscopy. Most disease is outside the bowel or within its wall, so colonoscopy cannot reliably confirm or rule it out. It can be part of the workup for another condition or red-flag bowel symptoms.
Can endometriosis cause pain during bowel movements?
Yes, endometriosis can cause pain during bowel movements, including deep rectal pain, cramping or pressure, especially around your period. This can happen when it involves the bowel or when inflammatory lesions and scar tissue irritate nearby pelvic structures.
Why do bowel symptoms get worse during my period?
Bowel symptoms can worsen during your period because menstrual hormones and inflammatory chemicals can directly affect the gut. Prostaglandins rise with bleeding and can increase intestinal contractions and fluid shifts, which may feel like cramping, urgency, and looser stools.
Further reading
Bowel Endometriosis: Causes, Symptoms, and Treatment
Bowel endometriosis explained: locations, symptoms, causes, diagnosis and misdiagnosis, plus treatments from minimally invasive surgery to lifestyle changes.
Endometriosis or Inflammatory Bowel Disease? The Key Differences
How endometriosis and inflammatory bowel disease differ and overlap. Symptoms, diagnostic challenges, epidemiology, treatment risks, and research gaps.
Do You Need Two Ultrasounds Before Bowel Endometriosis Surgery?
How TVS (transvaginal) and ERUS (endorectal) map rectal endometriosis, guide bowel surgery planning, flag stenosis and risks, and who benefits.
