The ultrasound ultrasound review residue 18 * 9mm generally will not be discharged on its own, can be through the conservative treatment of drugs or surgical clearance to help the residue discharged. The ultrasound after the abortion showed 18 * 9mm residue, residue around no blood flow signal, indicating that the residue activity is low, you can take under the guidance of the doctor to promote uterine contraction, blood circulation drugs to help the residue discharge, such as motherwort granules, biochemical granules and other treatments, the medication for a week after the re-examination, to see if there is still a residue of the uterine cavity, the residue is not discharged to carry out a purging operation to deal with. The ultrasound after medical abortion shows 18*9mm residue, there are obvious blood flow signals around the residue, indicating that the residue is more active, there is a possibility of continuing to increase, need to be combined with the level of HCG to deal with. HCG is higher, it is recommended to carry out purging surgery. The ultrasound ultrasound review residue 18 * 9mm can not be ignored and wait for its own discharge, the residue for a long time will increase the risk of intrauterine infection and hemorrhage, so you need to actively treat.