Well we were playing soccer yesterday, me and a couple of friends. A friend shot the soccer ball, it dodged on me, then it went back to the friend that shot the ball and it hit him in the testis...
He was in pain (sort of minor) he said, he didn't fall on the floor but instead he just sat on the bench...He said he was in pain for like 3-5 minutes then he was good again....

Should I advise him with anything, like seeing a doctor? Or is this not serious at all?

Please give mature answers

he will be fine.

If it ever hurts again, a doctor is necessary.

How could you be so sure, Steve?

well i foolishly assumed he checks himself regularly, every man should check atleast once a month (for lumps or anything out of the ordinary) if he damaged himself he would know.

the fact that he said it wasn't that painful is a tell tale sign too.

Many people pretend it's not painful because they're embarassed.

he will be fine, i know from past experiences. you can ask jj if you want and i have been hit multiple times with no side effects (other than alot of pain >.>)

personally, I think he would be fine. If it no longer hurts, it was just a minor accident

he will survive ...

No one would get a lump (cancer) from being hit by an soccer ball Steve

no i know but men should check for them regularly, i was saying he would notice if anything was wrong when he was checking.

If someone becomes sterile, they will still look normal...

i didnt mean looking, if he feels bruising or something then maybe he will want to play it safe but most of the time being hit like this doesn't do anything

He should ask a doctor for advice...