الفهرس 
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Abstract
DVT, Pulmonary embolism remains a major cause of morbidity and mortality in the general population, the established treatment for acute pulmonary embolism is anticoagulation with unfractionated or low molecular weight heparin followed by at least 3-6 months of warfarin. Surgery is a major acquired risk factor for venous thromboembolism, the duration of operation is directly proportional to increased incidence of post-operative VTE. Surgical maneuvers done under general anesthesia had increased incidence of VTE, followed by spinal anesthesia, while local and epidural associated with lower incidence of post-operative venous thrombo-embolism. In patients underwent surgery, the incidence differ according to the type of surgery. RECOMMEDNATIONS: We are in need to conduct a message to all surgeons to be aware of the population at risk to develop post-operative DVT to carefully examine risk factors and identify high risk patients and conduct prophylactic measures to them guided by ACCP recommendations and sticked to the evidence based science in the term of prophylaxis protocol to every type of surgery. As some events may complicate DVT as pulmonary embolism which may end by death so prophylactic protocol should employ the two preventive prophylactic protocols as: -Primary prophylaxis using drugs or physical methods which are effective for preventing DVT. -Secondary prophylaxis involving early detection and treatment of subclinical venous thrombosis by screening postoperative patients. When the diagnosis of DVT is already well established treatment programs must be employed without delay to: - Prevent the high incidence of mortality from pulmonary embolism. - Prevent the impaired quality of patient’s life due to post-phlebitic syndrome. - Long term prophylaxis to guard against recurrent venous thromboembolism.