CIN 3 is diagnosed when there have been found cervical cells that are severely changed or cells that have features of cancerous cells.
Sometimes, CIN 3 is called carcinoma in situ or "at place", meaning that the cancerous looking cells are still contained within the layers of cervical mucosa, and if they spread through the deepest layer of mucusa, spreading into the tissue underneath, it will become a true cancer.
You need treatment as soon as possible, and the prognosis is good, since the removal of affected area means preventing a cervical cancer.
In most of the cases of CIN 3, treatment is needed just once.
LLETZ (Large loop excision of the transformation zone) is the most common treatment for removing abnormal cells from the cervix. It is sometimes called LEEP (loop electro-surgical excision procedure). It takes about 5 to 10 minutes and is usually done under local anaesthetic as an outpatient procedure.
Best wishes!
Marija