The vaginal ring is a flexible ring about 2 inches in diameter that is inserted into the vagina. It releases progestin and estrogen into the body to avoid pregnancy. The woman inserts it herself and it stays in the vagina for 3 weeks. Then, she takes it out for one week to have her period. Like other hormone methods, a prescription from a doctor is required.
Update Date 3/11/2014
Updated by: Susan Storck, MD, FACOG, Chief, Eastside Department of Obstetrics and Gynecology, Group Health Cooperative of Puget Sound, Bellevue, WA; Clinical Teaching Faculty, Department of Obstetrics and Gynecology, University of Washington School of Medicine, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.