Dr. Karena Hanley:

The risks involved in a termination of pregnancy vary according to the gestational age of the termination and the procedure, whether it is a medical abortion or a surgical intervention. The risk of bleed, which is the biggest risk to a woman, is in the order of one per thousand, rising up to four per thousand, depending on the gestational age. It is also higher where there has been a surgical intervention. There is also a risk of uterine rupture where there has been a surgical intervention, again in the order of one per thousand to four per thousand. The other serious risk to the woman is infection, which, whether it is a medical termination or a surgical intervention, is in the order of 2% to 2.5%. Those are the risks of serious adverse effects of abortion.