My son is 9 years old and he's been experiencing some strange symptoms with his knee. He's told me that he hears a popping sound and often gives out. Should we have it examined? He doesn't play sports regularly and isn't too active in general.
If it was my kid, I'd have him seen by an orthopedist.
I would definitely get him examined. You need to know why he is having these symptoms if they have persisted for more than a few days. Make sure they examine both his knee and his hip. Children can have hip problems that present as knee pain.
Popping in a knee is normal. Giving out is not. If he is falling or the knee not giving him support, a health care professional should take a look.
If this just started happening without injury, it would be okay to watch for a few weeks. If it has been going on for awhile, getting it checked out would be a good idea.
Yes, he will likely need an examination and x-rays