Cracked fingers may be caused by dry weather, vitamin deficiency and fungal infections. 1. Dry weather: In the fall and winter seasons, the skin tends to become dry as the humidity of the air drops and the temperature falls. If you are often engaged in washing work, contact with detergents, resulting in the destruction of the sebaceous membrane of the skin of the hand, it is easy to finger dryness, which in turn is likely to lead to the phenomenon of dry cracked finger skin. This situation requires frequent application of moisturizer, good moisturizing skin care. 2. Vitamin deficiency: Vitamin A, B vitamins, etc., have a close relationship with the normal function of the skin barrier, the lack of vitamin A and B vitamins will lead to excessive keratinization of the skin, dryness, which will easily lead to cracked skin, thickening of the stratum corneum, roughness and other problems. According to the results of the test can be appropriate to supplement the appropriate vitamins. 3. Fungal infection: also known as ringworm, mainly caused by red trichophyton infection, need to be under the guidance of the doctor for antifungal treatment. If the fingers once cracked, it is recommended to consult a doctor in a timely manner, follow the doctor’s instructions for examination and treatment, so as to avoid secondary infection and so on, resulting in aggravation of the condition.