The cause of tongue marking may be caused by a weak spleen and stomach or excessive dampness in the body, and it cannot be ruled out that the teeth are not aligned properly. If the spleen and stomach are weak, it will affect the digestion and absorption of food, and may lead to edema and bloating, resulting in a pale white tongue and teeth marking tongue, accompanied by thick tongue coating and other symptoms. 1. Excessive dampness: Excessive dampness in the body may also cause internal obstruction of water-dampness, and the aggravation of dampness in the body will cause the tongue to appear larger in size, and after being squeezed by the teeth, it will cause the symptom of teeth marks. 2. Teeth are not aligned: for the teeth are not aligned or teeth deformity symptoms, may also be on the tongue caused by extrusion, resulting in the symptoms of teeth marks tongue. You can go to the hospital for a detailed examination to find out if you have a weak spleen and stomach and too much dampness. You can also go to the stomatology department to check your teeth and treat the symptoms according to the different causes.