Superficial phlebitis is very common in clinical practice, and the proportion of the general population suffering from superficial phlebitis is 3-11%, which is a very high proportion. The common causes are as follows: 1. Thrombotic superficial phlebitis after injury is most commonly caused by intravenous infusion, by stimulation of chemotherapeutic agents and other drugs, and by trauma to the limb. It is manifested as painful streaks at the site of the puncture injection, along the corresponding area of the venous line, and redness and swelling, which usually lasts for days or weeks and sometimes takes months to completely resolve. 2.Patients with thrombotic superficial phlebitis after varicose veins suffer from varicose veins of the lower extremities. Thrombophlebitis often manifests itself as a hard node with tenderness at the site of the varicose vein, which is often surrounded by erythema. 3, Infectious thrombophlebitis superficial phlebitis after surgery, after injection therapy, during injury or radiotherapy, and occult infection in varicose veins can easily induce this kind of thrombophlebitis; in addition, after long-term application of intravenous built-in tube infusion, it can induce more serious infectious thrombophlebitis. 4, Wandering superficial thrombophlebitis is characterized by repeated occurrence of superficial venous thrombosis in different sites, but most commonly in the lower extremities. This type of phlebitis may suggest nodular arteritis, thrombo-occlusive vasculitis; or even cancer. It requires vigilance. 5, Thrombotic superficial phlebitis of the chest wall, also known as Mondor disease, refers to superficial phlebitis of the anterior chest wall, breast, rib cage and upper abdomen. There are two characteristics of thrombophlebitis: self-limiting disease, in other words, it can heal by itself without treatment. However, aggressive treatment can reduce pain and time; it often recurs and persists, making it very painful for the patient. The treatment of thrombotic superficial phlebitis depends on the different etiology and pathological types as well as the extent and severity of thrombo-inflammation. Treatment: Except for infectious superficial thrombophlebitis, the vast majority of thrombophlebitis is aseptic inflammation and antibiotic therapy is ineffective.