Squatting on the toilet in normal women does not usually affect the cervical canal, but it may if you squat on the toilet for a long time in the second trimester.
Normal female squatting toilet generally will not affect the cervical canal. Squatting toilet with greater abdominal pressure and pelvic congestion may affect the pelvic floor tissues to a certain extent, and if the pelvic floor function itself is poor, there may be bulging of the vaginal wall, uterine prolapse, etc. Long-term squatting toilets may also cause hemorrhoids, etc.
In the late stages of pregnancy, the fetus gradually increases in size, and due to the influence of gravity, the pressure on the cervix from the prenatal part of the fetus gradually increases. If you squat for a long time to increase abdominal pressure, will also increase the pressure on the cervix, may affect the cervical canal, resulting in cervical relaxation. So try not to squat for a long time in late pregnancy. It is recommended to consult a professional doctor for specific cases.