A Pap smear is a test for women that can help find or prevent cervical cancer. During the

procedure, cells are collected from the cervix, which is the lower, narrow end of the uterus

that opens into the vagina. The cells are checked for cancer or for signs that they may

become cancer. These are called precancerous cells. Finding and treating precancerous cells

can help prevent cervical cancer. The Pap smear is a reliable way to find cancer early, when

it's most treatable.