Half a month after the abortion and bleeding in the same room, may be the endometrium is damaged or infections caused by factors, should use the appropriate drugs for treatment, different reasons, the use of different drugs, such as uterine blood capsule, levofloxacin. 1. Damage to the uterine lining: the uterine lining may not have fully recovered in half a month after the abortion, and when sex leads to another damage to the uterine lining, it will cause bleeding, you can take oral medication such as cathartic capsules to regulate. 2. Infection: After the abortion, do not pay attention to physiological hygiene, may lead to the presence of infection in the uterine cavity, in the coitus can lead to bleeding, in the diagnosis, should use antibacterial drugs for treatment, such as levofloxacin, amoxicillin and so on. This symptom may also be caused by other reasons, it is recommended to consult a doctor in time, timely treatment, during the treatment period, should pay attention to physical hygiene, prohibit sexual intercourse, reasonable rest, and follow the doctor’s instructions, reasonable use of medication.