Whether or not edema of the extremities affects urination and defecation depends on the cause of the edema. If the edema is caused by kidney disease, it may affect urination and defecation, and if the edema is caused by heart disease, it does not have much effect. If the patient is edema caused by kidney disease, such as chronic nephritis, acute renal failure patients, due to the decline in the glomerular filtration rate, water can not be excreted, the patient may be significantly swollen. It may also be accompanied by cloudy, whitish, frothy urine or increased nocturia and constipation. However, if the edema is caused by cardiac disease, it may cause heart failure and bruising of the body circulation, which may cause the patient to develop edema of the extremities. Patients are usually accompanied by symptoms such as panic and shortness of breath, fatigue, chest tightness, dyspnea, and dizziness. If the patient has edema of the extremities, he should go to the hospital in time to do heart and kidney ultrasound examination to clarify the cause of edema, and under the guidance of the doctor, take the appropriate treatment plan.