It is not menstrual period, there is a small amount of bleeding, the most likely is ovulatory bleeding. Ovulatory bleeding is caused by insufficient support of hormone levels in the body, it happens occasionally and lasts for about 3-5 days, no special treatment is needed, just observe. If there is always a small amount of bleeding that is not menstrual frequently, you can go to the hospital to investigate. First, do an internal gynecological examination to see if there is cervical erosion, cervical polyps. Secondly, you can check the white belt routine to see if there is vaginal inflammation. Then, do a gynecological ultrasound to see if there are any problems with the endometrium, ovaries, etc. If it happens occasionally and is not a small amount of bleeding during menstruation, it can be observed temporarily and does not require special treatment.