I am a 13 year old male. I have had this happen before but only about 3 times. I wake up and my left testicle (only my left) is hurting (almost like a cramp) it only last about 5-10 minutes but this morning it lasted a solid hour and it hurt to walk (apply pressure) Please contact me with any info!
Hi Bk,
Some pains in your testicles are normal while you're growing up. But, it can also be a concern if the pain is severe as it can indicate testicular torsion. Basically, the blood flow to the testicle is cut off and it can actually die (and need to be removed).
Not to scare you with that, just make sure you're aware.
Now, since you're 13 you are likely in puberty. You can also have pains from not ejaculating, as in "blue balls." Are you waking with a morning erection? Are you having nocturnal emissions or are you masturbating?
As Biomajor says it can also be an infection. Are both testicles about the same size? Do they feel different?