hi im 18 years old and i have a problem with my testicle, sometimes it get inflated a little bit and sometimes it hurts a little bit but not for long, may it be inffected or i dont know what, its been maybe 4 days now i want online advices for now.. soo any advice would be helpful.
Since you didn't mention taking any injuries to your groin region, I will assume the pain is not because of an injury.
Though this might be embarrassing to hear, masturbation might help. Why? Because sometimes, especially if there is arousal without relief/climax, ejaculate fluid can collect in the testicles and cause tenderness, fullness, and even a bit of pain. Masturbation can help relieve that build-up of fluid.
The other thing I would suggest is, if this tenderness and swollen-ness doesn't improve within the week or next, is to see your doctor. Yes, it may seem embarrassing, but it's always better to be safe than sorry - especially concerning organs like your testicles.