The time it takes for CIN3 to become cancerous years after conization is uncertain, and in some patients, if the margins are negative after surgery and there is no postoperative co-infection with human papillomavirus (HPV), then cancer may not occur.
CIN3 is carcinoma in situ of the cervix. If the margins are negative after conization, it means that the cervical cancer has been cured. Patients should be screened for cervical cancer 3 months after surgery. If there is a combination of HPV infection, then interferon therapy can be used as prescribed by the doctor; if there is already cervical lesion, then surgery can be performed again if necessary; if the screening is negative, regular rechecking will be sufficient, so it is very unlikely for cancer to reoccur after surgery.
For patients with cervical lesions after surgery, cervical cancer screening is still a necessary examination, which can detect early disease and early treatment. At the same time, women should also pay attention to keep the vulva clean and hygienic, and take appropriate exercise to improve the body’s resistance to reduce the chances of viral infections. If abnormalities are found in the examination, it is recommended that they go to gynecology department of regular hospitals as early as possible, and take active treatments under the guidance of doctors.