Patient: Description of condition (onset time, main symptoms, hospital visited, etc.): 3 weeks old girl, at the age of one week in the health center routine physical examination found urine occult blood, instrument side out ++, so went to Ningbo Women’s and Children’s Hospital to re-visit. The doctor said it was chronic nephritis Since the detection of occult blood in December 2009, she was seen at Ningbo Women’s and Children’s Hospital for routine urine and urine erythrocyte digit: occult blood ++++, microscopic erythrocyte + or ++, with 30% of anomalous erythrocytes, etc. The urine was checked once every 2 weeks, and the microscopic red blood cell count was low for 3 consecutive months (according to the doctor, it was low – that is, it was stable and well.) But occasionally there are one or two microscopic tests + or ++, and the doctor said it is easy to repeat. So far it has also been stable for a while, with bad test results again, etc. The doctor added the new drug Benadryl hydrochloride tablets and Sophora yellow granules. According to the doctor in Ningbo, the maximum extent of his ability is so, if there is no recovery again, it is recommended to do a puncture to check the cause of the disease, and then the right medicine. But to be in a large hospital. In the eyes of my parents hope that there is a better way, after all, puncture also has a certain risk that children have to suffer. Is it necessary to have a puncture if we want to cure it? Is there any other way? And there is no way to do puncture in Ningbo, Dr. Huang is an expert, please help! Children’s Hospital Renal Rheumatology: It is recommended that you have a formal urine sediment microscopy. The reason is that urine occult blood is a preliminary screening test to determine hematuria, and there are many factors that affect it; that is to say, positive occult blood does not necessarily mean that there is hematuria, while on the contrary, hematuria occult blood must be positive Patient: Doctor, prepare to see special needs this Saturday, what do we have to do to prepare early? I will bring all the information with me. I am looking for nephritis. Usually I don’t see any difference from other children. I’m not sure if I can drink water on an empty stomach, but I don’t want to. I am expected to be hospitalized in Shanghai next week (hospitalization order has been issued), and I have been on saline for 4 days, so I don’t know if it will be affected by the test after hospitalization. Or should we wait until we are well and then be hospitalized after a while? We are fine with the timing, it just depends on the doctor’s recommendation?