Originally posted by Jango
I am 15 and am not overweight nor have I ever been (Around 115 pounds). I noticed stretch marks on the left side of my body. I am concerned on what it might be. I am thinking that it might be because I lost 7 pounds over the summer and I am 5'10 or so. Please, if you have any suggestions on what this could be, let me know.
Have you started a new activity that uses stomach muscles? If so that's the cause, just to be better safe than sorry, ask your doctor, it could be something serious, but it's 99% something that's from a new activity, or from you losing weight.