Does weight lifting/building muscle cause/leave stretch marks?

The same reason being obese and pregnancy can leave stretch marks. The tissue under the skin (in this case muscle) is expanding faster than the skin can accommodate, causing it to stretch beyond its normal limits. read more

Lifting heavy weights in an effort to develop muscles overnight, which is often seen in people who are newcomers in the world of fitness, accentuates the problem. As a result, stretch marks and weight training go hand in hand. read more

Weight lifting - especially rigorous lifting can actually cause stretch marks when the growth of muscle overtakes the ability of the skin to stretch and accomodate the growing muscle. The best way to avoid stretch marks from weight lifting is to moderate the work-outs. read more