Does painless abortion require curettage?

General women do abortion surgery, is not the need to use curettage curettage treatment. Women do painless abortion surgery is through the suction device to suck out the pregnancy sac in the uterus, to achieve the effect of termination of pregnancy. If the female B ultrasound test results show that painless abortion is not clean, there are residues in the uterus, need to go to the hospital for curettage treatment.