There are more reasons for stomach pain after urination in early pregnancy, which may be caused by physiological factors or pathological factors such as urinary tract diseases and pre-eclampsia, the causes of which are different and the treatment plan is also different, divided into the following points: a. Physiological factors: If the pregnant woman only occasionally has stomach pain after urination, it may be due to stomach pain caused by the embryo pulling the uterus in the process of development, the uterus in being The painful sensation will occur during the process of gradual enlargement, which is normal and does not require special treatment. Pathological factors: 1. Urological diseases: If the stomach pain occurs after each urination in early pregnancy, the most common is urological diseases, such as acute cystitis, urethritis, bladder stones, urethral stones and so on. Pregnant women may mostly have symptoms such as urinary urgency, frequency, painful urination, incomplete urination, or even reduced urine output or non-urination. They should promptly visit the urology department for routine blood, urine and ultrasound examinations to treat the cause. Regardless of whether it is urinary system inflammation or stones, it is recommended to drink a lot of water and urinate more to help the inflammation or stones to be discharged according to medical advice. If the inflammation is more serious, oral antibiotics are also required for treatment. If the stone causes unbearable pain, progesterone can be given to relieve the pain. 2. Pre-eclampsia: If there is sudden stomach pain after urination and vaginal bleeding at the same time, it should be taken seriously and may be caused by pre-eclampsia, which requires timely medical attention and fetal preservation treatment under medical supervision. If the birth control fails, termination of pregnancy is recommended.