Chronic loss of appetite is not necessarily a sign of cancer. Most of them may be caused by inflammation in the digestive system, such as chronic gastritis and gastric ulcer, so there is no need to worry too much. If the symptoms are not relieved for a long time and are more serious, it is recommended that you must go to the hospital for a targeted examination and do not use medication at will. You need to clarify the cause of the disease according to your condition and treat it symptomatically.