how big can an ingrown hair bump get and when they go down will it leave a mark. i have this dime sized round dark mark on shaft of penis where the hair grows smooth feels like my skin i just notice it 2 weks ago,but about a 6months ago i had an ingrown hair down there,so could this be a infected hair follilcle are somethin else please help....
This could be an infected hair follicle, and since its not going away, see your doctor.
Aj