If occasionally poor sleep may occasionally occur swollen eyes, but if the eyes are swollen for several days in a row, even accompanied by edema of both lower limbs, it may be pathological and may be caused by disease. There are many causes of swollen eyes and swollen feet, mainly as follows: 1, kidney: a variety of nephritis, nephrotic syndrome, chronic kidney disease, chronic renal failure can cause swollen eyes and swollen feet; 2, heart: chronic cardiac insufficiency can also cause swollen feet and swollen eyes; liver disease; 3, endocrine diseases: like hypothyroidism, hyperthyroidism; 4, rheumatic immune diseases. can affect the kidneys and liver, and can also cause swollen eyes and swollen feet. So swollen eyes are just a symptom and may be a sign that we are ill. If this happens, we should go to the hospital in time, the simplest way to diagnose is to do a routine urine examination, if there is hematuria, proteinuria, we should do an in-depth examination and see a nephrologist for diagnosis and treatment.