The appearance of purple capillaries on the legs may be due to varicose veins of the lower limbs, atrophic lines and other causes, it is recommended to choose Diosmin, Rivaroxaban and other drugs according to the cause of the disease. 1. Varicose veins of the lower limbs: varicose veins of the lower limbs cause venous reflux, and the capillaries appear to dilate after the pressure in the veins of the lower limbs increases. Due to low oxygen content in venous blood, purple capillaries will appear. Medications can be used to enhance the venous tension and protect the blood vessels, such as MaiZhiLing and Diosmin. 2. Atrophic lines: The skin can be stretched or traumatized, forming stripes or skin depressions, and the color is mostly lavender or red. The color is mostly lavender or red. It is usually distributed in multiple stripes and is painless and itchy. It can be relieved by topical application of retinoic acid cream or laser. If purple capillaries appear on the legs, please do not judge and medication, should go to the regular hospital to find out the cause of the disease, and follow the doctor’s instructions for treatment.