Venous obstruction is a disease that is difficult to cure and severely impairs the lives of patients and lowers the quality of life. Occlusion begins with the formation of clots in the vein for various reasons. The most important complication of this clot is the dislodgement of the lungs through the vein, causing pulmonary insufficiency (embolism) by disturbing lung function. Therefore, swelling, pain, redness that started on the unilateral side of the leg should not be neglected. Treatment includes bed rest, blood thinning needles, pills, dissolving the catheter with early catheter and angioplasty.