Question
After a cold, the tonsils became inflamed, and the urine test showed a positive protein test for three items. It then healed spontaneously, but two weeks later, a trace amount of protein appeared again. What could be the cause?
Answer
Physiological proteinuria refers to a temporary increase in proteinuria due to factors such as intense exercise, changes in body position, drastic changes in body temperature, or emotional excitement, without underlying pathological changes. In this case, the protein content in the urine is not high, and it can return to normal on its own after eliminating the relevant factors. According to the description, the child’s positive urine protein may be related to respiratory tract infection and inflammation, and proteinuria also disappears after recovery from the infection. However, if proteinuria appears again, it is recommended to conduct further examinations to rule out potential pathological factors.