The hamstring is obviously what causes

In general, we see several kinds of people who show muscles on their legs clinically. The first kind is obese people. Because of poor blood supply, or poor reflux, they show blue veins exposed. When they stand for a long time, it is more obvious. The second kind shows blue veins exposed because of problems with vascular valves and long-term standing. Clinically, there is a name called varicose veins of lower limbs. Varicose veins of the lower limbs, it is recommended to wear an elastic sock, which is conducive to the recovery of her varicose veins. In addition, it is recommended to often do the back movement of the ankle to alleviate this symptom.