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Women’s Health Library

Our Health Library information does not replace the advice of a doctor. Please be advised that this information is made available to assist our patients to learn more about their health. Our providers may not see and/or treat all topics found herein.

Intrauterine device (IUD)

An intrauterine device (IUD) is a method of birth control that is placed inside the uterus to prevent pregnancy.

All IUDs have a plastic string that extends through the opening of the cervix into the vagina. The string allows a health professional to remove the device at your request or at the end of its effectiveness (usually anywhere from 3 to 12 years, depending on the type). Talk to your doctor about how long you can use it.

The IUD is very effective at preventing pregnancy.

Current as of: May 1, 2026

Author: WebMD Ignite Staff

Clinical Review Board
All WebMD Ignite education is reviewed by a team that includes physicians, nurses, advanced practitioners, registered dieticians, and other healthcare professionals.

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Telehealth & COVID-19

Telehealth Visits are available. Request by calling (650) 239-5303 or  click “Request Appointment” above. We have a secure HIPAA compliant platform that allows me discuss your health matters privately. If you need an in person visit, please know we are using CDC guidelines of distancing patients and disinfecting. Masks are mandatory for all staff and patients. Dr Serrato does not see COVID patients here nor those with any respiratory symptoms. Your safety is of the utmost concern to me.… Continue Reading