Loop Electrosurgical Excision Procedure (LEEP) is a medical technique used primarily to treat abnormal cells found on a woman's cervix. The procedure involves the use of a thin, low-voltage electrified wire loop to excise (cut away) abnormal tissues. LEEP is often utilized in the context of preventing cervical cancer by removing pre-cancerous lesions detected during a Pap smear or colposcopy.