Tongue cracks are generally not a precursor to serious illness, is the body’s internal organs manifested in the external signs, heart fire, yin deficiency fire (Yin essence loss in the body, there is a deficiency of fire) and so on can lead to cracks in the tip of the tongue. 1. Excessive heart fire: Chinese medicine believes that the heart opens the orifices in the tongue, the tip of the tongue is a reflection of the heart function of the parts of the heart, heart fire, fire and heat injuries caused by the tip of the tongue is not moistened, the tip of the tongue cracks, and also see the heart irritability, insomnia, dreams, sores on the tongue and mouth, yellow urine and red tongue with yellow moss, and so on. 2. Yin deficiency and fire: Yin deficiency and lack of fluid, can not moisten the tongue, there can be cracks in the tongue, and see dry throat and mouth, five heart heat (two hearts and two feet heart heat, and consciously heart and chest heat), night sweating (sleep sweating abnormally, wake up sweating stops), tongue red moss and so on. It is recommended to have a regular life, eat less fat, sweet, thick and greasy food, stay up late, eat more vegetables and drink more water to relieve the symptoms. If you have any of the above symptoms, it is recommended to go to the hospital for consultation and symptomatic treatment after identification by a Chinese medicine practitioner.