I have observed something that my right nipple appears to be filled with something in it whilst right one seems ok. When i touch my right one, it aches in it a bit. What can it be ? the problem is around the base of it.i have a 35" chest,quite slim guy
What can it be ?
It's not uncommon to get swelling of one or both nipples in puberty, as a result of the hormone changes. The swelling can continue for a couple of years, but eventually goes down. Perhaps that is what is going on?
Yes, as Ineligible said, it sounds like it could be gynecomastia. Given that it's sore, it's a good idea to check it out with your doctor.