Why Are There Lines on the Inner Thighs? What Should I Do?

The appearance of streaks on the thighs is most likely due to atrophy striae, also known as stretch marks or obesity striae. Generally, there is no need for treatment, but laser therapy can be used multiple times if necessary to significantly improve the appearance of the symptoms. This condition is caused by the rupture and degeneration of elastic fibers in the dermis, resulting in atrophy changes due to excessive skin stretching. It is also known as stretch marks or white lines, and during pregnancy, it is referred to as pregnancy striae. The elastic fibers of the skin become fragile and rupture due to excessive stretching. Skin traction or trauma during this period are only predisposing factors that affect the distribution of skin lesions. The occurrence mechanism of obesity striae is similar to that of pregnancy striae on the abdomen of pregnant women, which is caused by the rupture of collagen fibers in the subcutaneous tissue. It is commonly seen in younger individuals who are in a vigorous stage of growth and development, and can also occur in some people who overdo fitness. It manifests as symmetrical, striped brown macules that are painless and non-itchy. Generally, there is no need for treatment, but laser therapy can be used multiple times if necessary to significantly improve the appearance of the symptoms. People with obesity striae should maintain regular eating habits, avoid excessive eating and drinking, control their intake, and avoid greasy foods. Additionally, massage can be helpful for relieving obesity striae. According to survey data, 70% of female stars regularly perform massages on themselves in relaxing environments, which may seem slow in showing results but is an important means of promoting cellular self-relief.