There are different causes of pustular moss, and there are many different ways to diagnose it, so there are many different ways to examine pustular moss, and each examination method examines a different aspect. Only when these examination methods cooperate with each other can the examination of pus moss be carried out accurately. Examination methods: 1. Laboratory examination of pus moss The routine examination of urine pays attention to leukocytes and pus cells tubular type in addition to the increase of leukocytes and pus cells. The presence of small round epithelial cells represents upper urinary heel staining. Routine blood count leukocytes and neutrophils increase. Urine smear to find the pathogenic bacteria can make the diagnosis quickly. 2.Instrumental examination of pus urine B ultrasound and CT examination are necessary to examine severe pus moss. x-ray imaging will also be helpful to diagnose pus moss. Caution: Please try to relax when performing the instrumentation examination to ensure the quality of the examination. The examination should be performed quietly because muscle activity generates bioelectricity, and crying, deep breathing, and limb movement can affect the results of the examination. Therefore, the examination should be performed when the child is quiet. If necessary, the child can be given some sedative drugs to prevent interference caused by other muscle activities.