Local venous pressure pain is a symptom of thrombophlebitis, which is a common clinical condition. It can develop in both men and women, and is more common in young adults. The clinical features are: sudden onset of redness, burning, pain or pressure along the superficial veins, and the appearance of striae or hard nodules. After the acute phase, the cords harden and local skin pigmentation occurs. So, what causes will lead to local venous pressure pain in patients? The following is a brief introduction: 1, slow blood flow stagnation reduced limb activity or restricted activity, slow blood flow, increased concentration of coagulation factors, long-term bed rest, reduced muscle strength, weakened support for the vascular wall, vascular compression, resulting in poor blood return and induced. 2.Vascular wall injury Mechanical injury such as long-term repeated venipuncture, tube placement, infusion of various irritating hypertonic solutions. 3, blood hypercoagulation state surgical trauma, burns, myocardial infarction, blood transfusion, tumors and other causes of hypercoagulation can be induced. 4.Decreased elasticity of blood vessel wall Such as advanced age, smoking, diabetes, obesity, limb edema, heart failure, etc. can also be induced.