Hunger pangs may not be caused by stomach problems, but by not eating for a long time. Secondly, it may also be caused by gastritis, gastric ulcer, hyperthyroidism, diabetes and other diseases. 1. Long-term failure to eat: If you do not eat for a long time, the stomach is in a fasting state, the stomach acid secretion, the body will appear hunger, which is a normal physiological phenomenon. This is a normal physiological phenomenon. After eating, the feeling of hunger will gradually disappear. 2. Gastritis: If you often drink strong tea, strong coffee and other stimulating drinks or often eat spicy and stimulating, unhygienic food, it is easy to induce gastritis. Gastritis patients are not only prone to hunger, but also prone to acid reflux, stomach pain, nausea and vomiting. 3. Gastric ulcer: If the patient’s stomach movement is abnormal or the body is infected with Helicobacter pylori, it is easy to induce gastric ulcer. Patients are prone to epigastric pain, hunger and other symptoms. 4. Hyperthyroidism: If a large amount of iodine-containing food, drugs or suffering from thyroid nodules, thyroid tumors and other diseases, may induce hyperthyroidism, resulting in patients with hunger pangs. Symptoms such as excessive sweating and weight loss may also occur. 5. Diabetes mellitus: Heredity, autoimmune system defects and other factors may trigger diabetes mellitus, causing the patient to experience symptoms such as hunger, excessive drinking, excessive urination, and excessive eating. If hunger is caused by a long period of time without food, it is recommended to eat in a timely manner and follow up to maintain a regular diet; if hunger symptoms occur frequently, it is recommended that the patient actively seek medical attention to clarify the cause of the disease and standardize the treatment.