The girl always wants to go to the toilet with a stomachache, and there is a slight blood stain on h

Acute urinary tract infection is most likely.

I'm going to give you some references to take a look at in detail. >>>More

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If you eat spicy, you will have diarrhea, and it will be fine for a normal day, but if it hurts all the time, you should go to the hospital for treatment.

It's a urinary tract infection, and it's like this if you don't pay attention to hygiene. I've tried it before. You can go to the pharmacy and buy some medicine to eat, ask the doctor, and he will tell you what anti-inflammatory medicine is good to take. After taking the medicine, it will be fine for about two days.

chronic colitis;

Dysmenorrhea; Metabolic disorders caused by vitamin deficiencies. >>>More