The emergencies of varicose veins in lower limbs mainly include: 1. Bleeding. When the tension of the vein mass is high to a certain degree, once there is skin trauma or even no trauma, the vein mass suddenly ruptures and bleeds, initially the bleeding is in the form of jets, and with the reduction of venous pressure, the bleeding momentum slows down, at this time, emergency compression is needed to stop the bleeding, and timely rescue treatment is needed to hospital to avoid shock; 2, acute thrombotic superficial phlebitis. Sudden occurrence of widespread thrombotic superficial phlebitis in the affected limb, extended limb superficial vein alignment sudden redness, hot painful hard nodules or cords painful and obvious or accompanied by fever; 3, deep vein thrombosis of the lower limb. As the thrombotic superficial phlebitis spreads to the deep vein through the traffic branch vein, the limb suddenly develops swelling, pain and red skin color, requiring the affected limb to be braked and bed rest; 4.Pulmonary embolism. When varicose veins of lower limbs are complicated by deep vein thrombosis of lower limbs, and when the embolus is dislodged with blood reflux leading to pulmonary embolism, patients have chest pain, chest tightness, hemoptysis, cough and other symptoms, and shock occurs in serious cases. If the above situation happens, all of them should go to regular hospital for treatment in time.