Symptoms of thrombophlebitis are related to the location of the disease. Clinical symptoms of thrombophlebitis in superficial veins are different from those of thrombophlebitis in deep veins. Thrombophlebitis of superficial veins is characterized by redness, swelling, heat and pain along the veins, and localized elevation of skin temperature. At the same time, the veins with normal course are now seen to become corded or beaded, and are tender to palpation. Superficial phlebitis has less systemic effects, systemic symptoms are rare, and repeated episodes of phlebitis can be seen in skin pigmentation. Thrombophlebitis of the deep veins starts suddenly and is characterized by swelling of the lower extremities, bruising of the skin, pain, and aggravation when walking. Repeated episodes of phlebitis may be characterized by skin hyperpigmentation. The thrombus hardens after mechanization, and local dystrophic changes ensue. Symptoms of thrombophlebitis can be mild or severe, in order to avoid exacerbation or thrombus progression, to prevent thrombus dislodgement, and to avoid fatal pulmonary embolism, it is recommended that the patient consult the vascular surgery department in a timely manner, and take therapeutic measures in accordance with the doctor’s instructions.