The tests required for the diagnosis of thrombophilia include imaging tests, laboratory tests, and physical tests. 1. Imaging examination: such as ultrasound, CT, magnetic resonance, contrast, etc. Ultrasound is the first choice for peripheral vascular thrombosis, with high sensitivity and specificity, while CT and magnetic resonance can react to the degree of ischemia of the brain tissue and other tissues, providing an important reference for diagnosis. CT and magnetic resonance can respond to the degree of ischemia in brain tissue and other tissues, providing important reference for diagnosis. 2. Laboratory tests: such as platelet count, D-dimer, coagulation, etc. Some patients may have abnormalities, but the specificity is poor. 3. Physical examination: such as lower extremity deep vein thrombosis can appear gastrocnemius muscle pressure pain, knee joint activity limitation. Thrombosis of the brain can appear limb dysfunction, reflex abnormalities. Pulmonary embolism can appear chest pain, coughing up blood, dyspnea, etc., accompanied by a decrease in blood pressure and electrocardiogram changes. Thrombophilia is now becoming more and more prevalent in the clinic, and once it occurs, it should be promptly consulted in the hospital and diagnosed and treated under the guidance of specialized doctors.