The common causes of facial swelling in the elderly are mainly the following: a. Patients with combined chronic renal insufficiency will cause difficulties in excreting water in the body, and a large amount of water will accumulate in the lax interstitial space in the body, such as the limbs and face, which will cause facial swelling. Second, in elderly patients with cirrhosis, due to the weakened ability of the liver to synthesize albumin, the intravascular colloid osmotic pressure decreases significantly, and a large amount of water infiltrates into the tissue interstitial space, which can cause facial swelling; at this time, patients can be treated with active liver protection, strengthen the supplemental albumin for diuretic treatment, and discharge excess water from the body to reduce facial swelling.