Contraindications to pressure treatment of the lower limbs are as follows:1. Lower limbs with well-defined wounds, especially sutured wounds or wounds after surgery, if pressure treatment is used, it will easily lead to reopening of the wounds and lead to bleeding.2. Patients with poor coagulation function, such as congenital lack of platelets, coagulation factors, and patients who have been taking anticoagulants for a long period of time, if the pressure treatment is strong, it is possible to cause subcutaneous bleeding or even lead to extensive hematoma formation under the skin. 3. cause subcutaneous bleeding, or even lead to subcutaneous extensive hematoma formation. 3, for patients who already have a clear lower limb thrombosis or thrombus blockage, if pressure treatment is used, it is likely to lead to thrombus dislodgement, and the thrombus can be violated to the whole body through the blood circulation, leading to severe cerebral infarction, pulmonary embolism or myocardial infarction, and other serious sequelae.