Subjects in whom GP were detected at the initial survey underwent follow-up ultrasound examinations after 30 and 84 months. Results: At the initial survey gallbladder polyps were detected in 34 ...

Cervical polyps are very common indeed and, as you say, they can interfere with taking a smear test. A polyp is no more than an overgrowth of one small area of the lining of the cervix.