Final answer:
Cryotherapy is used to treat CIN 2, CIN 3, and CIS lesions.
Step-by-step explanation:
Cryotherapy is a treatment that uses extreme cold to destroy abnormal cells on the surface of the skin or in the body. It is commonly used to treat precancerous lesions of the cervix known as cervical intraepithelial neoplasia (CIN). The grade of CIN lesions determines the severity of the abnormal cell growth, with CIN 1 being the least severe and CIN 3 being the most severe.
CIN 1 lesions are often monitored without immediate treatment because they have a low risk of progressing to cancer. CIN 2 and CIN 3 lesions, on the other hand, have a higher risk of progressing to cancer and are typically treated with cryotherapy or other interventions to remove or destroy the abnormal cells. CIS, or carcinoma in situ, is a type of non-invasive cancer and may also be treated with cryotherapy or other appropriate treatments.