Does painless abortion need to be cleansed?

Painless abortion generally do not need to clear the treatment, but pay attention to the embryo is too large, or the fetus has grown bones, through the surgical method can not be removed, this situation needs to be treated again. In addition, when there is residual embryonic tissue in the uterus after painless abortion, this situation is also need to give clear treatment, so as not to induce massive bleeding.