The sudden absence of frequent urination in early pregnancy is a normal manifestation. The phenomenon of frequent urination should not occur in early pregnancy, but in late pregnancy, due to the enlargement of the fetus, the enlarged uterus will compress the nearby organs, resulting in the reduction of bladder volume, and the symptoms of frequent urination are a normal manifestation. If frequent urination occurs in early pregnancy, it is due to urinary system infection that leads to frequent, urgent and painful urination. If the symptoms of frequent urination occur in early pregnancy, it is an abnormal performance and needs to be checked for urinary routine. You should pay attention to hygiene during pregnancy, pay attention to washing and keep your pubic area clean to avoid urinary tract infections or vaginitis.