 [ Symptoms ] stiffness tightness and minor swelling on knee after exercising with no pain  i was playing soccer yesterday and i was running around and shooting like you would and for some reason at one point my knee started feeling weird there was no pop or anything i went home and then the knee started to feel really stiff and tight i can not fully bend it since it feels like it is going to explode extending the knee also feels weird there was a bit of pain yesterday a few hours after but now i feel nothing i have never had any knee problems and i am 17 what could this be [ Disease ] hi you mean your perineum well if i was you i would get hold of some sea salt put a couple of handfuls in a nice warm bath this will help to heal and clean you splittear just sit in the bath and let it do its work twice a day would be best this way it should heal better remember its not what you put in your body think positive do hope this helps you good luck