After the schoolgirl urinates, what reason is below wipe haemorrhage to come

After the girl urinates below rubs the bleeding, mainly considers is the menstruation before the symptom, if accompanies urinates the ache or the itch situation, then considers is the gynecology inflammation or the urinary system infection causes the symptom. Suggest to the hospital carries on the urine routine and so on the examination, simultaneously needs to pay attention to the clean personal hygiene at ordinary times.