Discoloration of the lower legs of the elderly may be edema caused by blood circulation problems, which may generally be caused by renal insufficiency, cardiac insufficiency, coronary heart disease, chronic obstructive pulmonary disease and so on.
1. Renal insufficiency: the metabolic function of the kidneys of the elderly is weakened, and there may be water and sodium retention in the body, which can lead to edema of the lower limbs, face and eyelids. Some common chronic diseases of the elderly, such as hypertension, diabetes, atherosclerosis, etc., may damage the kidneys and lead to renal insufficiency, triggering edema and thus discoloration of the lower legs.
2. Cardiac insufficiency: the myocardial tissue of the elderly may have degenerative diseases, leading to abnormal pumping function, thus causing blood circulation disorders, which leads to swelling of the lower limbs and discoloration of the calves.
3. Coronary heart disease, chronic obstructive pulmonary disease: these diseases can easily cause heart failure, which can lead to venous return obstruction, reduce the amount of return blood, resulting in blood stagnation in the lower limbs, causing swelling and discoloration of the calves.
If there is discoloration of the calves, it is also necessary to exclude whether there are diabetic complications, varicose veins and arterial embolism, etc. It is recommended to consult a doctor in time to find out the cause and receive treatment.