Knee joint popping/pain

For awhile now, I've had an issue with my left knee. Whenever I kneel or sit with my knee slightly angled, I get a pain in my knee joint. There's a slight popping sound and I need to bend my knee in a way to get it to pop again, back into place I assume. It's a nuisance because every time I kneel I have to be cautious of my knee. It doesn't happen all the time though. Just before, I knelt to plug something in and my knee shifted and I stood up to a strong pain. This only happens in one knee. I have had no other medical issues with my legs, it's an issue I've had for a few years now. I'm a teenager, if this makes any difference. Would just like some advice on what the problem could be.

Go see a sports orthopedic surgeon right away for x-ray and MRI.  Do not do anything to stress the knee until you know what this is.

Yes, I agree with Chico's advice.  That's definitely your starting point Aida.  Good luck and let us know how you go.

Hi, thank you for your advice. I will be arranging to see someone about it in the coming days. (:

Thanks Cheryl. Will update later with how things go!

Great!

I have had this in both knees it's cartilage getting caught in your knee. My doctor tells me " You Call me when you are ready for your CKR.