Looks like swelling and irritation from your piercing bar being too short or a reaction to it I'd change it to a silicone one that's longer for a while and see if that helps
Could be a hernia. I'd get checked out by a GP
Looks like swelling and irritation from your piercing bar being too short or a reaction to it I'd change it to a silicone one that's longer for a while and see if that helps