A colposcopy is an examination of the cervix using a colposcope to view the cervix closely and detect any abnormal areas. It is performed in a colposcopy clinic by a trained doctor or nurse. A colposcopy may be needed if a pap smear shows abnormal cells, the last three pap smears were inadequate, or a woman has symptoms like bleeding. During the procedure, different liquids are applied to the cervix to highlight abnormalities, and biopsies may be taken. Treatment such as LLETZ or cryotherapy is usually provided to remove or destroy pre-cancerous cells if indicated by biopsy results showing CIN. Follow up pap smears are needed after treatment to monitor the cervix.