Detailed answer

Stretch marks, also known as striae, can develop on any part of the body where the skin has been stretched. This includes the thighs. Common causes of stretch marks on the thighs can include rapid weight gain or loss, growth spurts during puberty, pregnancy, or intense physical workouts. Stretch marks form when the skin's elastic fibers tear due to excessive stretching, leading to scar tissue formation. While they may fade over time, stretch marks often remain visible. Prevention methods such as maintaining a healthy weight, keeping the skin hydrated, and avoiding rapid weight fluctuations may help minimize the risk of developing stretch marks on the thighs.