Differences - 7 min read
PCOS, PCOD, and endometriosis: what is the difference?
A calm comparison of PCOS, PCOD, and endometriosis symptoms, overlap, and when pain deserves deeper Mauri care team review.
The short version
PCOS and PCOD are commonly used to describe hormone, ovulation, androgen, and metabolic patterns. Endometriosis is different: it is a condition where tissue similar to the uterine lining grows outside the uterus and can cause significant pain, inflammation, and fertility challenges.
The confusing part is that real people can have overlapping symptoms. Irregular cycles can sit beside severe period pain. Acne can sit beside pelvic pain. That is why symptom patterning is helpful, and the Mauri doctors and care team can review the story in more detail.
PCOS and PCOD patterns
PCOS is diagnosed using criteria that look at ovulation, androgen signs or labs, and ovarian appearance after other causes are excluded. PCOD is often used in South Asian settings to describe a related ovarian and hormonal pattern, though the terminology varies across care settings.
Common clues include irregular or missed periods, acne, excess facial or body hair, hair thinning, weight changes, cravings, insulin resistance, and fertility concerns.
Endometriosis patterns
Endometriosis is more pain-forward for many people. Clues can include severe period pain, pelvic pain outside periods, pain during sex, pain with bowel movements or urination around the period, heavy bleeding, bloating, and fertility concerns.
Pain that makes someone miss school, work, or normal life should not be dismissed as normal period pain.
Where they overlap
Both PCOS/PCOD and endometriosis can affect cycles, fertility, energy, mood, and quality of life. Some people may have more than one condition, and some symptoms can be amplified by inflammation, stress, sleep disruption, and metabolic health.
This is why Mauri separates phenotype assessment from diagnosis. A quiz can help you organize the story, but it cannot confirm what is happening inside the body.
When to speak to the Mauri care team
Speak to the Mauri doctors and care team if periods are very irregular, bleeding is heavy, pain is severe, symptoms are worsening, you are trying to conceive, or symptoms are affecting daily life.
If symptoms feel urgent, local emergency care is important for sudden severe pelvic pain, fainting, fever, heavy bleeding with weakness, or possible pregnancy with pain.
How Mauri uses this distinction
Mauri starts by asking about cycle rhythm, visible androgen signs, energy, history, and pain. PCOS/PCOD phenotype patterns guide the protocol preview. Severe pain is treated as a separate Mauri care team review flag, not as a diagnosis.
Research links
- Office on Women’s Health: EndometriosisPatient-friendly overview of symptoms and care pathways.
- NICHD: Endometriosis factsheetNIH source on common symptoms including pain and infertility.
- ACOG: Painful periodsGuidance on period pain and when evaluation matters.
- 2023 International Evidence-based Guideline for PCOS/PMOSCurrent guideline hub for PCOS/PMOS assessment and management.