Endometriosis can make pregnancy harder for some people. The effect varies. Many people with endometriosis conceive without added medical support. The condition cannot give one person a fixed fertility forecast.

Age and ovarian function can matter. So can the fallopian tubes, sperm health, other health issues, and time trying. Care should look at the full picture.

How may endometriosis affect fertility?

Endometriosis may cause swelling or scar tissue. It may also change the area around the fallopian tubes and ovaries. Some people have an ovarian cyst called an endometrioma.

These changes may affect how an egg is released. They may affect how egg and sperm meet. The organs may not work together as well. Yet the link is not simple. The amount seen cannot predict one person's chance of pregnancy.

WHO lists fertility problems as one possible effect. Want a wider view? Read the main endometriosis guide.

Can you become pregnant naturally?

Yes. Some people learn they may have endometriosis after a past pregnancy. Others conceive while living with symptoms. Some seek medical support.

No app, scan, or symptom list can promise an outcome. ACOG says fertility plans should be part of care talks.

The trying-to-conceive guide has steps to take before pregnancy. Do you track cycle dates? A fertile-window estimate is not an exact ovulation date. Read how fertile-window estimates work.

These dates support conception planning and awareness. They are estimates, not a reliable way to avoid pregnancy.

When should you ask for help?

You can ask for advice whenever you are concerned. An early review may help if endometriosis is known or suspected. Severe pain or past pelvic surgery may also be reasons. Very irregular periods or another fertility concern may make time important.

Age and time spent trying also guide timing. You do not have to wait for a fixed deadline. Ask sooner when there is a reason for an early review.

When sperm is part of conception, both partners may need a review. Endometriosis may not be the only factor.

What may a fertility review include?

A clinician may discuss:

• Cycle, pregnancy, and surgery history.
• Pain, bleeding, and current medicines.
• Ovulation and ovarian function.
• Ultrasound findings.
• Whether the fallopian tubes need assessment.
• Semen analysis when relevant.
• Age, timing, goals, and personal priorities.

The plan should explain what each check can add. Read how endometriosis is assessed if you are still exploring the cause of symptoms.

How can surgery affect fertility decisions?

Surgery may be discussed for pain. It may also be considered for an endometrioma, deeper disease, or fertility reasons. It is not the best next step for everyone.

Surgery on an ovary can affect its egg supply. This supply is called ovarian reserve. It does not measure egg quality. It also cannot promise a pregnancy outcome. Repeat surgery needs careful discussion.

ESHRE supports shared choices. Pain, age, past surgery, egg supply, other fertility factors, and your wishes can all matter.

Before surgery, ask:

• What is the main goal?
• What are the possible benefits and risks for fertility?
• Could the procedure affect ovarian reserve?
• What alternatives are reasonable?
• Should a fertility specialist be involved first?

What medical support may be discussed?

Options depend on the full review. You may keep trying for a set time without added support. Surgery may help in selected cases. A clinician may also discuss ways to help egg and sperm meet or in vitro fertilisation.

In vitro fertilisation is often called IVF. Eggs and sperm are combined in a lab. An embryo is then placed in the uterus. IVF is not the only option. It cannot promise an outcome.

Hormone medicines for endometriosis often stop ovulation while you use them. They do not raise the chance of natural conception during that time. Do not stop prescribed medicine on your own. Discuss your plan first.

Emotional support matters

Pain and fertility uncertainty can be hard. Tell your care team if worry or low mood affects daily life. Share any strain from repeated tests or on your relationships.

Set boundaries around tracking and questions from others. Ask for clear next steps and a review date. Support for emotional well-being can sit alongside fertility care.

The guide to common endometriosis signs can help you explain symptoms. You can share it with a partner or clinician. It makes no claim about your future.

When to see a doctor

Book an appointment if you have symptoms and want to become pregnant. Seek advice if you have been trying without success. Ask before changing medicine. An early review may help if pain is severe or another fertility concern is known.

Contact a clinician for bleeding or pain after a positive pregnancy test.

Seek care now: Get urgent medical help for severe one-sided pelvic or abdominal pain, shoulder-tip pain, fainting, severe dizziness, or heavy bleeding when pregnancy is possible. Contact local emergency services or go to the nearest emergency department.

Frequently asked questions

Does endometriosis always cause infertility?

No. Many people with endometriosis become pregnant.

Does the stage predict whether I can conceive?

Not with certainty. Many personal and partner factors affect fertility.

Is surgery always needed before trying?

No. The balance depends on symptoms, findings, prior surgery, age, and fertility goals.

Should fertility goals be discussed before ovarian surgery?

Yes. Ask how the planned procedure may affect ovarian tissue and future options.