Hi I'm a 15 year old boy and my left testicles is hurting wat does it mean
If the pain is severe you need to seek EMERGENCY medical attention immediately. By severe, I mean you are nauseous, can't walk, etc. It could indicate testicular torsion and untreated you could lose your testicle (amputate).
Some minor pains are common during puberty.
If the pain continues see your doctor.