Subcutaneous tissue sclerosis is the clinical manifestation caused by simple varicose veins of lower extremities, which is generally not serious, mainly manifested by sinuous expansion and tortuosity of superficial veins of lower extremities, if the disease continues to progress, to the late stage, especially when the traffic vein valves are destroyed, mild swelling and nutritional changes of skin in the foot and boot area may occur, including skin atrophy, desquamation, pruritus, hyperpigmentation, skin and subcutaneous tissue sclerosis, and even eczema and ulcers formation. The following tests can be done to confirm the diagnosis of subcutaneous tissue sclerosis: The prevention of this disease mainly has the following aspects: 1. It occurs mostly in people who are persistently engaged in standing work or manual labor. 2, Where there is a family history of simple varicose veins, most of them develop soon after puberty, therefore, in childhood and adolescence, proper physical exercise should be carried out to strengthen the venous walls under the condition of enhancing the general fitness. 3.The measures to protect the superficial veins are: (1)For those who are engaged in standing work or strong physical labor for a long time, it is advisable to wear elastic stockings for protection so that the superficial veins can be atrophied. (2) Long-term standing workers should walk around frequently and do more ankle extension and flexion activities to reduce the pressure in the superficial veins. (3) Improve labor conditions and reduce labor intensity. (1) Wear elastic stockings or use elastic bandages during labor or activities to prevent trauma. (2) The affected limb should be elevated for a moment after 1 hour of labor or activity to promote venous reflux, reduce pressure in varicose veins and prevent rupture and bleeding. (3) The affected limb should be elevated slightly above the heart level for 7-10 days after surgery. (4)The incision should be covered with dressing and local pressure bandage if the blood leakage is serious. (5) Braking for 24 hours after surgery, with compression bandage, and gradually relax the next day, while carrying out foot and toe activities. (6) Keep the wound dressing clean and dry. (7) Use antibiotics and hemostatic drugs as prescribed by the doctor and observe their effects.