Limb edema can be caused by pulmonary embolism and pulmonary heart disease, resulting in blockage of blood flow as well as poor reflux.
Firstly, pulmonary embolism, the main reason for embolism in the lungs is that emboli block the blood vessels in the lungs, which then causes a blockage of blood flow. Emboli are present in the blood vessels and can reach the lower extremity vessels through the blood circulation, thus causing edema in the lower extremities due to blockage of blood flow.
In addition, pulmonary heart disease is a common condition that can cause limb edema. Pulmonary heart disease can cause poor venous return, then the blood of the distal limbs can not flow back to the heart smoothly, resulting in localized blood aggregation and the formation of edema.
It is recommended to consult a doctor in time and follow the doctor’s instructions for examination and treatment.