Frequent hunger may be a normal physiological phenomenon, or it may be a manifestation of certain diseases, such as diabetes mellitus, hyperthyroidism or gastric diseases. 1. Frequent hunger may be a normal physiological phenomenon, such as eating less food, or food is easy to digest, can appear always hungry. 2. Frequent hunger may also be related to some diseases, such as diabetes, hyperthyroidism or stomach diseases. (1) The typical symptoms of diabetes mellitus are three more and one less, patients usually show that they eat more, drink more, urinate more, and also have weight loss. (2) Hyperthyroidism is related to the overproduction of thyroid hormones, which can lead to hypermetabolism of the body, thus making you feel hungry all the time. (3) If there are stomach diseases, such as gastritis or gastric ulcer, it can lead to excessive secretion of gastric acid, which can also lead to feeling hungry all the time. There are many other causes of frequent hunger, if the symptoms are serious or persist without improvement, it is recommended to go to a regular hospital in time to consult a doctor to clarify the cause of the disease, under the guidance of the doctor for targeted treatment.