If you have intercourse after 10 days of abortion, the endometrium has not fully recovered and bleeding again after intercourse may cause inflammation or aggravate the existing inflammation, leading to retrograde infection. Therefore, sexual intercourse is prohibited within one month after abortion. If you have intercourse and bleeding 10 days after abortion, you should first identify the cause, common causes are ovulatory bleeding, intrauterine infection, uterine cavity residue, poor uterine regeneration, etc. The specific causes and treatment methods are as follows: 1. Ovulatory bleeding: hormonal imbalance after abortion, so that the hormone level fluctuates widely during ovulation and there is obvious bleeding, accompanied by mild lower abdominal discomfort or lumbar soreness. It is recommended to do ovulation test and basal body temperature measurement to confirm the diagnosis, and oral estrogen and hemostatic drugs such as estradiol valerate tablets and adrenochrome tablets can be taken for treatment; 2. Intrauterine infection: there can be prolonged vaginal bleeding, accompanied by foul smell, fever and abdominal pain symptoms, blood routine and cervical smear should be checked to confirm the diagnosis, and active anti-infection treatment should be followed, such as oral amoxicillin and metronidazole, etc.; 3. Uterine cavity residue: after abortion If there is residual blood or tissue in the uterine cavity after abortion, vaginal bleeding may occur, accompanied by paroxysmal abdominal pain, and the diagnosis should be confirmed by ultrasound examination in hospital. The treatment can be applied as prescribed by the doctor to promote the contraction of the uterus, such as motherwort granules, misoprostol, etc. The patient should avoid sexual intercourse for a short period of time after abortion, pay attention to rest, avoid staying up all night, anger, do not do heavy physical work, the usual diet should be matched, nutritious, and should use reasonable contraceptive measures, such as the use of condoms, placement of intrauterine device, etc.