Birth control pills contain progesterone and estrogen, two hormones that regulate the menstrual cycle and determine how heavy your period is each month. Taking birth control pills causes many people to experience lighter, shorter periods. If your period is particularly heavy and you're ready to manage it with medication, this might be the right option for you.  Talk to your doctor about getting a birth control pill prescription. Everyone's body is different, and there are a lot of different types of pills designed to cater to different needs. Make an appointment with your doctor or go to your local health clinic to get the prescription that's right for you. Take the pill according to instructions. If you skip a few days, you might end up experiencing a heavy or irregular period - not to mention, the pill will no longer be effective as a birth control measure. Be sure to take the pill every single day, at the same time every day, to experience the benefits you're looking for. The Pill isn't the only type of birth control that can work to regulate your period. If you don't want to take a pill every day, consider these other options that will have the same benefits as the standard birth control pill:  The birth control patch. This is usually placed on the arm, back or thigh. It distributes the same hormones as the Pill, only they're absorbed through your skin. The patch has to be changed every few weeks.  The birth control ring. This is a small ring inserted into the vagina and changed out once a month. It releases hormones into the bloodstream.  A hormonal intrauterine device (IUD). This is a small metal device that is implanted in the uterus by a health care provider. It releases hormones into the uterus and works for up to 12 years. The IUD causes some people to miss periods or have lighter periods, but for others it can make periods irregular. If you would prefer not to have your period at all, there are now options that will let you eliminate it altogether. Several drug companies make pills that create...

TL;DR in Chinese:
咨询医生看是否可以服用避孕药。 考虑荷尔蒙避孕法。 考虑长效口服避孕药。