Perimenopause · Red flags
When to worry about perimenopausal bleeding and spotting
Bleeding patterns become unpredictable in perimenopause. Most is driven by anovulation and unopposed estrogen. A small but important subset signals fibroids, polyps, endometrial hyperplasia, or (rarely) cancer. Here's how to tell them apart.
Normal perimenopausal patterns
- Cycles shortening by 2-4 days
- Occasional skipped periods
- Modest flow changes
- Mid-cycle spotting occasionally
Get evaluated for any of these
- Soaking a pad/tampon every hour for 2+ hours
- Clots larger than a quarter
- Periods longer than 7 days
- Any bleeding between periods
- Bleeding after intercourse
- Any bleeding 12+ months after your last period
- Fatigue, dizziness, shortness of breath (possible anemia)
Workup
Pelvic ultrasound (transvaginal for accuracy), endometrial biopsy if indicated, CBC to check for anemia. Sometimes hysteroscopy to visualize the uterine cavity.
Frequently asked questions
What perimenopausal bleeding is normal?
Shorter cycles (21-24 days), occasional skipped periods, and modest changes in flow are all typical. As long as bleeding is not heavy enough to cause anemia and not between cycles, most changes are benign.
What is spotting between periods?
Mid-cycle spotting from ovulation is common. Persistent spotting between periods, or after intercourse, warrants evaluation — polyps, cervical changes, or endometrial pathology can cause it.
How do you know if perimenopausal bleeding is dangerous?
Red flags: soaking pads hourly for 2+ hours, clots larger than a quarter, bleeding >7 days, bleeding between periods, bleeding after sex, or any bleeding 12+ months after last period.
What is postmenopausal bleeding?
Any bleeding after 12 consecutive months without a period. Always requires evaluation — 10-15% of postmenopausal bleeding is endometrial cancer or precancer.
What tests will a clinician order?
Pelvic ultrasound to measure endometrial thickness and check for fibroids/polyps. Endometrial biopsy if endometrium is thick (>4-5 mm postmenopause) or bleeding is unexplained.
Considering a physician-supervised longevity protocol? Kindr Health evaluates peptide therapy as part of personalized perimenopause and menopause care.
Request your Longevity Consult →Related: FDA peptide review July 2026 briefing · Peptide therapy hub · Longevity service
Medically reviewed by Kindr Health Clinical Team · Last reviewed 2026-06-19. Compounded medications are prepared by FDA-registered 503A pharmacies and are not FDA-approved drug products.