The symptoms of venous edema are slowly occurring, progressively increasing edema of the lower extremities. This edema is characterized by lightness in the morning and heaviness in the evening, which means that the symptoms are significantly reduced after waking up after a night of rest, but as work and life continue, the edema often gradually increases in the afternoon. After the occurrence of venous edema, with the gradual increase of edema time, the recovery becomes slower and slower, and most patients gradually progress to incomplete recovery after rest, which requires active treatment to prevent the emergence of sclerosing edema.