Just after my period ended, I took birth control pills for a few days, and then my period came again. How is that possible?

Patient's question:

No

Doctor's answer:

It may be due to frequent use of emergency contraception, causing irregular menstruation. It is recommended to switch to other contraceptive methods such as condoms in the future. Currently, you can wait and see. If necessary, you can try taking Xiāoyáo Wán (Free and Easy Wanderer Pill) and Wūjī Báifèng Wán (Black Chicken White Phoenix Pill). Wish you good health.