The so-called fasting generally refers to fasting, and blind long-term fasting may increase the chances of diseases, such as gastrointestinal disorders, anemia, hypoproteinemia, hypoglycemia, etc.. Fasting can reduce the burden on the gastrointestinal tract, reduce the secretion of gastric acid and digestive enzymes. Fasting is also required in cases such as acute gastric perforation, acute pancreatitis, upper gastrointestinal bleeding, etc., but the body’s nutrients will be replenished through fluids. Fasting for 10 days is a long-term fast, and fasting for too long may cause diseases. For example, gastrointestinal disorders may have symptoms such as abdominal distension, bowel sounds, etc.; for example, anemia may have symptoms such as pallor, weakness of limbs, etc.; for example, hypoproteinemia may have symptoms of lower limb edema; for example, hypoglycemia may have symptoms such as dizziness, panic, etc., which may cause accidents if not dealt with in a timely manner. It is recommended not to fast blindly to avoid adverse consequences, and if fasting is needed, it should follow the doctor’s guidance and advice.