Bad intestines have no sense of taste there are many reasons for this to happen, such as chronic gastroenteritis, peptic ulcer, neurasthenia, lingual inflammation and other causes. 1. Chronic gastroenteritis: when dietary impurity, overeating or bacterial infection occurs when chronic gastroenteritis, the intestines will be stimulated by discomfort, nausea and vomiting and other phenomena, which further affects the appetite leading to the mouth to eat something tasteless. 2. Peptic ulcer: when external invasive factors such as Helicobacter pylori infection peptic ulcer occurs, the gastroduodenal mucosa is stimulated by gastric acid, pepsin and other stimulation to produce self-digestion, pain, caused by the decline in intestinal function. In addition, it will also cause loss of appetite leading to no taste. 3. Neurasthenia: due to chronic overstress or stress, brain and body function weakness, showing intestinal bad no taste, accompanied by mental tension, easy to fatigue and other symptoms. It is recommended to develop good habits and reduce anxiety. Bad intestines without taste may also be caused by other reasons such as inflammation of the tongue, it is recommended to consult a doctor in a timely manner, under the guidance of a doctor to clarify the cause and targeted treatment, do not take medication, so as not to delay the condition.