Talk to Pediatrician on Male Baby Glans Penis Discoloration

AoA Dear Doctors. Please help.

The glans penis of my 8 months baby is purplish in color. Someone told me to see a skin specialist. I met a skin specialist and he said it may be due to increased diaper pressure. He recommended no meds or treatment. Many days gone without diaper. Still the purple color persists. No other Symptoms. No pain etc. No apparent rash. Kindly dx/rx. 😔