Jun 11, 2025
Understanding retrograde menstruation and its health impact
Siddhartha JanaWhat is retrograde menstruation
It’s the backward flow of menstrual blood into the pelvic cavity via fallopian tubes. It’s common and often harmless but linked to conditions like endometriosis in some women.
Source: Canva
Immune system's role
Nearly 90% of menstruating women experience it, but most don't develop problems because the immune system clears the blood. When it doesn't, complications like endometriosis can arise.
Source: Canva
Recognizing the symptoms
Retrograde menstruation itself may not cause symptoms, but signs like severe cramps, heavy bleeding, fatigue, bloating, and pain during sex or ovulation may signal underlying issues.
Source: Canva
When to see a doctor
Consult a doctor if pain is intense, OTC meds don’t help, menstrual issues affect daily life or mental health, or if you have trouble conceiving after a year of trying.
Source: Canva
Link to endometriosis
This condition is a major theory behind endometriosis. Retrograde flow may implant tissue outside the uterus, especially if immunity is weak or there’s a genetic tendency.
Source: Canva
Endometriosis effects
Endometriosis can lead to adhesions, scarring, chronic inflammation, and damage to reproductive organs—factors that hinder fertilization and embryo implantation.
Source: Canva
Fertility and hope
Though retrograde menstruation may affect fertility, many women still conceive. Early diagnosis and medical help can preserve fertility and improve reproductive health.
Source: Canva
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