Low-protein edema is mostly caused by a decrease in plasma colloid osmotic pressure. Albumin is one of the most important substances in the blood, but also an important substance that determines the osmotic pressure. When the albumin level in the patient’s body decreases, the osmotic pressure will be significantly reduced, when the albumin level in the patient’s body is less than thirty grams per liter when the colloid osmotic pressure of the capillaries will be significantly reduced. When less than the osmotic pressure of the body’s tissue interstitial, the fluid will flow into the tissue interstitial thus causing edema. Hypoproteinemia caused by edema in the clinic is a common symptom, mostly seen in malnutrition or malignant tumors in the late stage of the patient, if this situation occurs, it is recommended to go to the hospital in a timely manner, under the guidance of the doctor to standardize the treatment, you can eat a little bit of high-protein nutritious food, including meat, vegetables, and cattle and sheep and other food.