Having been screened for cervical cancer three years ago, there is still some possibility of cancer, so it is important to have regular checkups. It is generally recommended that women who have been sexually active for two years or more should have cervical cancer screening every two to three years, and if they have a history of cervical lesions, they should have cervical cancer screening every year. A negative result from cervical cancer screening three years ago does not mean that there is no possibility of cervical cancer afterward. If you have had sexual misconduct or multiple sexual partners during this period, you are at some risk of HPV infection. If precancerous lesions are detected by cervical cancer screening three years ago and treatment is not taken in time, they may develop into cervical cancer. It is recommended to pay attention to daily private hygiene and correct bad habits to reduce the possibility of the disease.