There are many reasons for swollen legs, which can usually be divided into physiological and pathological reasons.
1. Physiological reasons: prolonged standing, walking or sedentary may lead to swelling of the lower extremities, while staying up late, obesity, physical inactivity, as well as infrequent exercise may also cause swelling of the lower extremities, such as sudden exercise excess.
2. Pathological causes: such as long-term varicose veins of the lower extremities, lower extremity venous embolism and other diseases that cause obstruction of venous return to the lower extremities, resulting in swelling of the lower extremities, as well as some chronic diseases, such as chronic nephritis, heart failure, cirrhosis of the liver, etc. may cause swelling of the lower extremities.
There are many reasons for leg swelling, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, under the guidance of the doctor for targeted treatment and therapy.