Dry cracked fingers can be caused by environmental factors, lack of vitamins, chronic eczema and other reasons. 1. Environmental factors: a long time of wind and sun will lead to the hands of the skin is more and more dry and rough, caused by the fingers of dry cracks. 2. Lack of vitamins: when the organism due to partiality or picky eating, etc., resulting in the lack of certain trace elements, it will cause the finger skin dry crack openings. 3. Chronic eczema:;; Chronic eczema on the hands is a dermatitis-like condition caused by various reasons, which can appear cracks, blisters, flaking and so on, and when it causes dry finger skin, it leads to cracked fingers and mouths. There are many other causes of dry cracked fingers, such as fungal infections and adverse stimuli. Patients should go to the regular hospital in time to find out the cause of the disease and carry out targeted treatment.