Hello there — The scrotum (ballsack) which holds your testicles can have a variety of variation from individual to individual. It doesn’t sound regarding to me that there appears to be a small indentation once they retract all the best way again, notably if it has all the time been this manner.
HOWEVER, the truth that you’re having ache makes me anxious. With out figuring out all the main points, it’s exhausting to know what’s occurring so I feel you will need to get checked out by your physician. Anytime you may have ache in your testicles you possibly can’t simply clarify, it is best to get your medical group concerned.