Proteinuria (protein in the urine) may be a sign of kidney disease in some people. However, sometimes the proteinuria is associated with an infection and resolves within a few weeks (transient proteinuria). This is, generally speaking, not a problem. Many patients with proteinuria have what is known as "postural proteinuria". It is thought to be a benign problem in which protein is found in the urine but disappears. In well teenagers, medical specialists often find that the proteinuria is "postural." That means the proteinuria will disappear after a period of lying flat. This is not associated with serious kidney disease. To make the diagnosis a first morning urine is collected and found to have not protein.
If protein is detected, as was probably your case, further investigations should be made to determine the cause. The pediatric nephrologist you have been referred to is an expert in this area. Glomerulonephritis is the term used for several related diseases that damage the glomeruli, the tiny filtering units in your kidneys. TeenHealthFX cannot diagnose you over the Internet but we recommend you follow through with your specialist to determine your diagnosis and any and all necessary treatments.