Thanks for writing to health care magic.
One of the various causes for such a problem could be urinary tract infection
. You need to be further investigated after a physical examination. A urine culture and sensitivity may be required along with urine routine examination. Further investigations and treatment depend on the initial reports. Please consult your doctor for the same. It may not be possible to arrive at a diagnosis from the few lines you have written.
Continue to ask further queries as required.
Hope this helps.
Dr Y V Siva Sankara Murty
Associate Professor of Pediatrics