After urination, abdominal pain, mainly consider the urinary system abnormalities caused by the main reasons for the emergence of the corresponding clinical conditions, including urinary system inflammation, stones, tumors and so on. 1. Inflammation of the urinary system: the most common cause of the corresponding symptoms is cystitis, because the local mucosal damage, in the process of defecation, with the tissue contraction will cause corresponding changes. 2. Stones: stones cause local mucous membrane scratches, in the process of contraction and diastole can also cause tingling discomfort. 3. Tumor: Tumor lesions will cause damage and invasion of surrounding tissues, further leading to mucosal ulceration, which will cause stabbing pain during urination and easily accompanied by hematuria. If the abdominal pain after urination is not relieved, you need to be admitted to the hospital for observation in time, and after diagnosing the specific condition, you should carry out standardized treatment under the guidance of clinicians to avoid the delay of the condition.