Capillary dilation in the thighs is a type of varicose vein, a relatively mild type of varicose vein, which is caused by elevated venous pressure. Elevated venous pressure is due to venous valve incompetence and blood from the deep veins enters the superficial veins, which increases the pressure in the superficial veins and leads to dilated and tortuous vessels, resulting in capillary dilation. Another factor is human hormones, because clinically, the capillaries of the thighs are obvious, and these patients are usually middle-aged and elderly women. Because their estrogen levels are elevated, it leads to capillary dilation in the thighs. Both of these factors are causative factors of capillary dilation in the thighs. If you want to lift them, you can use sclerotherapy. This treatment is relatively minimally invasive, just like an injection, and the pain is very minimal and does not affect the patient’s normal life.