<s>[INST] Just hit my knee, about one hour ago, head on with another players knee playing basketball.  Now my knee (just to the inside of my left knee cap) has a big goose-egg on it and it hurts to put pressure on my leg when I stand up so I'm limping.  I have ice on goose-egg now.  I did not twist knee .... just a hard hit. [/INST] For confirmation of diagnosis u need to go for x-ray..there is less chance of fracture but it may cause internal joint injury.start conservative measure like pain killer and antiinflamatory tablets.if pain and swelling persist go for mri. </s>