Everytime she runs, she felt this aching knees, why that so?

Anonymous2011-11-03T18:25:44Z

Favorite Answer

That would depend on the severity of the pain. If it's very severe pain, there could be something wrong with the bones in the legs or maybe even arthritis. If it's only mild or medium pain, it could just be that she hit her knee on something and the pain should subside eventually. She should talk to a doctor.