What should I do if my period comes back after 10 days?

If your period is gone for ten days and then comes again, if the amount is relatively small, consider that it may be ovulatory bleeding, which is a normal physiological phenomenon and can usually end soon. Ovulation bleeding is due to the lowest level of estrogen in the body during ovulation, the endometrium loses the nutrition of estrogen and bleeding will occur, at this time, due to the formation of the corpus luteum after ovulation, the corpus luteum secretes progesterone to maintain the growth of the endometrium, so the bleeding will soon stop. The amount of bleeding is relatively large basically excludes ovulatory bleeding, which is an abnormal condition. You should see a doctor for ultrasound to understand the condition of the endometrium and exclude diseases such as uterine fibroids or clotting mechanism disorders, and you need to see a doctor for the corresponding examination.