Nails raised general consideration and gray nails, micronutrient deficiencies, trauma, etc. have a certain relationship, the specific cause of the patient to the regular hospital, under the guidance of the doctor to clarify the diagnosis, targeted treatment. 1. gray nails: dermatophytes invade the nail plate or nail bed and cause a lesion, which will lead to abnormalities in the patient’s nail plate, mainly in the nail plate turbidity or thickening, brittle, shedding, buckling, discoloration, etc., the nails will also have the phenomenon of bulging. 2. Micronutrient deficiencies: calcium deficiency, potassium deficiency, iron deficiency? Anemia, malnutrition, etc. can also cause this nail bulge. Therefore, we should supplement the nutrition in time, maintain a good state of life, and ensure the normal intake of vitamins and calcium substances. 3. Trauma: Nail injury, extrusion collision and so on can lead to nail bulging, may cause proliferative bulging, so it will make the nail bulging. In daily life, patients should pay attention to eat more fresh vegetables and fruits, eat less spicy and stimulating food, develop a good lifestyle, and need to pay attention to try not to be injured in general.