No taste in the mouth, indicating that the taste papillae on the mucosa of the tongue body have problems, commonly due to the following reasons: First, chronic linguitis: patients are mostly due to poor oral hygiene, the presence of a large number of tartar and bacteria in the mouth, while due to the lack of vitamins and trace elements in the body, especially when the B vitamin deficiency, it is very easy to induce chronic linguitis, resulting in swelling of the taste papillae on the surface of the tongue, or even Atrophy, causing varying degrees of taste disorders, resulting in no taste in the mouth when eating. Second, female menopause: due to the dramatic changes in the body hormone levels, it is easy to induce numbness of the tongue body, chewing food can not feel the taste, and even a hot and spicy feeling in the mouth, a series of uncomfortable symptoms.