Numbness and coldness of the body after partial gastrectomy may be due to mental stress, iron deficiency anemia, insufficient energy intake, etc. Different causes of different treatments. 1. Physiological factors: endocrine disorders caused by postoperative stress and nervousness may lead to hormonal disorders, at this time, you should relax, relieve their own stress, moderate exercise. 2. Iron deficiency anemia: gastric absorption dysfunction after partial gastrectomy leads to insufficient absorption of iron, not enough red blood cell production, resulting in anemia, body cold and numb, you can take some iron products under the guidance of the doctor to supplement iron. 3. Insufficient energy intake: after partial gastrectomy, the volume of stomach content becomes smaller, unable to take in the energy needed by the body normally, resulting in coldness and numbness, you can consume some high-calorie and high-protein food to improve the symptoms. After partial gastrectomy, the body’s resistance decreases, such as discomfort, should go to the hospital in time to find out the cause of the disease, to avoid delaying the time of treatment.