Obstructed venous return means that the amount of venous blood returned to the heart is obstructed resulting in a decrease in both output and input to the heart, and the body experiences various circulatory abnormalities that lead to heart failure. The heart muscle contraction is weakened and the heart is not able to metabolize and excrete blood properly resulting in increased central venous pressure and jugular vein stasis causing jugular vein anger, lower limb edema and hepatomegaly. Physiological conditions due to long-term a squatting position will also appear venous return obstruction, long-term squatting prone to cerebrovascular transient blood supply deficiency, in the moment of changing position will have venous return obstruction appear dizzy symptoms. Pulmonary infections, asthma attacks, and prolonged standing during respiratory distress cause varicose veins in the lower extremities due to obstruction of venous return, and obstruction of venous return is a variety of circulatory disorders caused by a reduction in the amount of blood returned to the heart for various reasons.