Toe nail cover empty often caused by the following factors: first, trauma caused when the foot by trauma squeeze or smash, will lead to nail bed below the nail atrophy, there will be toe nail cover empty. This is generally not too worried, with the growth of the toenail, the nail bed gradually recovered, the local can be completely healed. But if the empty place is large, you need to go to the hospital, under local anesthesia to perform a partial removal of the toenail or completely remove the toenail, and then a regular change of medication. Second, the patient’s diet is too single, the lack of nutritional elements caused by the need to adjust our diet, such as not eating too spicy food, such as chili, spicy food, spicy hot pot, etc., do not drink alcoholic beverages, appropriate more intake of vitamin and fiber-rich food, such as fruits and green vegetables, appropriate intake of high-quality protein, such as fish and shrimp, appropriate intake of food containing unsaturated fatty acids, such as walnuts, peanuts, nuts, etc, peanuts, nuts, etc.