The woman is usually put under general anesthesia before the procedure begins. A curette, a metal rod with a handle on one end and a sharp loop on the other, is inserted into the uterus through the dilated cervix.
In rare cases, an ectopic pregnancy may occur concurrently with a normal, potentially viable pregnancy. This potentially dangerous condition is known as heterotopic pregnancy.
Spontaneous miscarriage is defined as the loss of a pregnancy before 20 weeks gestation. Most spontaneous miscarriages (75 to 80 per cent) occur in the first 12 weeks of pregnancy.
There are other less common causes of miscarriage. These include: hormonal imbalance, abnormalities of the womb, weakness of the cervix and certain infections like listeria and rubella.