“What causes prostate enlargement in children?”

Prostatitis

Very unusual and doubtful unless diagnosed by an experienced urologist. Thus, strongly advise consulting a urologist. Extremely rare, however have seen rhabdomyosarcoma (cancerous tumor) a few times over past 40 years. Very, very rarely prostatic cysts can also occur. Diagnosis can not be made without digital rectal examination which requires insertion of gloved index finger.