The doctor will usually contact you within a few weeks after the appointment to let you know the results of the pap smear. Sometimes he or she can tell you on the phone, other times you will have to schedule a follow-up appointment, even if results are normal. The process varies between doctors. If the results were abnormal you may have to go in for further testing. Regular yearly testing catches abnormalities early on and can prevent many problems from becoming more serious.
According to experts, this exam should be a lifelong process. You should only stop if you are 65 or older and have been told by your doctor that it isn't necessary, or you've had a hysterectomy, meaning you've had your uterus removed, as well as your cervix.