It is normal for frequent urination to disappear suddenly in late pregnancy. When the fetus is in the pelvis in late pregnancy, the pressure on the bladder decreases as the pressure in the abdominal cavity decreases, so it will return to its pre-pregnancy state and you will not feel the frequency of urination. Because the bladder volume decreases in early and mid-pregnancy when it is compressed by the uterus, it is easy to have frequent urination and urgent urination. In the middle and late stages of pregnancy, it is not frequent urination, which is normal and does not require special treatment and therapy. Usually pregnant women try to pay attention to hygiene and cleaning to avoid causing inflammatory infections. In the middle and late stages of pregnancy, you should also pay attention to relaxation and not too nervous, not overworked. When you are overworked or nervous, it is easy to cause uterine contractions and promote premature birth.