The birth control implant, Nexplanon, is highly effective with just a 0.01% chance of pregnancy. The birth control implant requires a quick and painless procedure and lasts for up to three years. Common side effects of the birth control implant include irregular bleeding, headaches, and acne. This article was medically reviewed by Olivia P. Myrick, MD, who is a clinical assistant professor with the Department of Obstetrics and Gynecology at NYU Langone. Visit Insider's Health Reference…
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