How long does a hormonal coil take to work for endometriosis?

The coil releases a progestogen inside the uterus. This can make the womb lining thinner and may reduce heavy bleeding and period-related pain. Endometriosis tissue outside the uterus is not removed by the coil, so symptom relief is gradual and varies between people. Spotting or irregular bleeding can happen early after insertion and does not by itself show whether the treatment will help.

Keep a simple record of pain, bleeding, pelvic pressure, and any pain medicines you need. Use medicines only as advised for you. Arrange a review if symptoms remain difficult after the initial settling period, because your clinician may discuss another treatment or a combined plan. Learn more about [Endometriosis](/conditions/endometriosis/) and the [Hormonal Coil](/treatments/contraception-and-family-planning/hormonal-coil/).

Seek urgent medical help for severe or worsening pelvic pain, fainting, fever, heavy bleeding that makes you feel unwell, or a positive pregnancy test with pain or bleeding. Contact your coil provider promptly if you cannot feel the threads, feel hard plastic at the cervix, or develop unusual discharge or pain after insertion.

Ask when your symptoms should be reviewed, which changes are expected after insertion, how to manage breakthrough bleeding, and what other options are available if endometriosis pain continues.