Having your period again 10 days after your period is clean is often considered to be bleeding during ovulation. Due to hormonal fluctuations, the endometrium will shed and there will be a little bleeding, usually for 1-2 days for short periods and 3-5 days for long periods, which usually does not require treatment. If it occurs repeatedly, it should be taken seriously. Go to the hospital for appropriate tests, including endocrine tests of blood and ultrasound, to check for organic problems, such as the presence of endometrial polyps and submucosal fibroids. Also, whether this bleeding is related to sexual intercourse. If there is bleeding after intercourse, it means that there may be problems on the cervix, whether it is erosion, whether it is cervical polyp. If a young girl has been sexually active for more than 1 year, screening for cervical cancer, including TCT and HPV, is recommended to find out the cause. If it is ovulatory bleeding, it may recover in 1-2 months, but if it is longer than 3 months, it may need to be regulated with medication. And if there are fibroids or polyps, a hysteroscopic procedure may be required. If there is a problem with the cervix, it can be treated with medication through examination. If there is no HPV infection, the medication will solve the problem. So don’t be nervous about occasional bleeding after menstruation, but if it occurs repeatedly you should seek medical attention promptly.