The subcutaneous implant inside the upper arm forms a small incision and pushes the suture incision subcutaneously from a group of silicone capsule incisions in the tube. Contraception began 24 hours after subcutaneous implantation. Once implanted for 5 years, the contraceptive effective rate is 99%. It only contains progesterone and estrogen, so it has more side effects than birth control pills. If you are healthy and have no contraindications, use this contraceptive method. I didn't do subcutaneous implantation, but the doctor said that some of them would cause side effects, such as amenorrhea or endless menstrual bleeding. However, this also varies from person to person. For example, some people are not suitable for intrauterine devices, while others are not suitable for taking birth control pills.