I am a 17 year old Female, and the outer muscle in my right thigh really hurts whenever I move it. This injury was from sports but not from over exerting my muscle. Yesterday I was playing indoor soccer and someone kneed me in the thigh, right where my muscle is, today it is still very sore and painful, the muscle is the part that hurts. This has happened to me a total of 3 times from the same thing, someone kneeing me in the thigh, and it is very painful. It takes a while to recover if I am staying active after, but if I rest it diligently then it will heal faster. But I have never herd of anyone else having this problem, so I am very curious as to what it is. The feeling of my muscle is similar to the day after a hard work out and the lactic acid is gnawing at your muscles, but it stays longer.View Thread