Hello Doc,
I am twenty eight years old and I noticed after having my first child my knees crack constantly when I squat. I gained about almost seventy pounds during my pregnancy. I have lost about sixty pounds. My knees do not hurt when I squat, but I am worried why they crack so much when I squat or go up and down stairs. I used to play soccer and run about five days a week. Now I run about three times a week and exercise moderately. I am worried that I will have more problems with my knees as I get older. Should I worry and what is wrong with my knees.