In the Chinese folklore, there is a saying that frequent exposure to cold water after activity will lead to varicose veins. In fact, there is no scientific basis for this, as varicose veins in the lower extremities are a disease that is unique to humans who stand and walk. Normal lower extremity venous blood needs to flow back to the heart from bottom to top, and to maintain such “water flowing to higher places”, human beings in the process of evolution, the lower extremity vascular cavity gradually formed a structure called venous valve, which is like a one-way valve, preventing the normal “water flowing to lower places “, which we call venous reflux. Once this valve fails or partially fails, the venous vessels of the lower extremities are subjected to top-down regurgitation pressure for a long time (because people are standing and walking animals), gradually forming dilated, sinuous and tortuous vessels, which can also develop into swelling, itching, hyperpigmentation, and even ulcers and infections. The onset of the disease has certain genetic factors, which we can not change, but also related to daily habits, we can make some adjustments in these areas to slow down the development of the disease. 1, the disease has a genetic tendency, there is a family history of varicose veins, generally in the age of 30 years, so in childhood and adolescence should be diligent exercise, enhance physical fitness, help to prevent and control. 2, obese people should lose weight, although obesity is not the direct cause, but the excessive weight pressed on the legs may cause poor venous reflux in the legs, so that the venous dilatation is aggravated. 3, avoid standing or sitting for a long time, should often let the legs do lift, put down the movement. If possible, it is better to take a small walk. Especially those who have been engaged in heavy physical labor and long-term standing work. 4, women’s periods and pregnancy and other special periods to give special care to the legs, more rest, to often massage the legs, to help blood circulation. 5, quit smoking, because smoking can make the blood viscosity change, blood becomes sticky, easy to stagnate. 6, elevate the legs: elevate the legs so that the body position changes to help the venous blood return, which helps to reduce the venous pressure in the legs and prevent the formation of varicose veins. 7.Wearing elastic socks: elastic socks should be chosen with high elasticity (medical), and before getting out of bed every day, lift both legs up and slowly set them in. The pressure of the elastic socks can improve and prevent varicose veins in the lower limbs. 8, adhere to a certain time of walking every day, several studies have proved that walking is the best exercise to prevent varicose veins. Each time you complete a walk, your calves act as a pump to “squeeze” the blood back in, thus preventing the pressure of blood returning. It is important to note that once varicose veins are developed, no matter how much care is taken, it can only be slowed down, not reversed, and cannot be cured by itself. When there are complications such as serious impact on appearance, swelling, itching, pigmentation, ulceration and infection, rupture and bleeding, you must go to a regular hospital vascular surgery department in time (special reminder: there are too many false advertisements, so be careful to distinguish them) and take standardized treatment. At present, surgery is still the most thorough treatment, and laser closure combined with punctiform extraction can achieve the same effect with less trauma. The above methods are still applicable for post-operative maintenance.