The normal color of human finger (toe) nail is reddish and shiny, if the human physiological function is disturbed, resulting in the occurrence of disease or malnutrition, trauma, infection, poisoning, the application of drugs or changes in the environment and life, it can cause the finger (toe) nail color change, to prevent the finger (toe) nail color change in daily life should be how to do? 1, according to the cause of the disease for targeted treatment. 2, pay attention to appropriate exercise, work and rest, avoid staying up all night, overwork, irregular work and rest. 3, eat more fruits and vegetables, eggs, dairy and other protein-rich, vitamin-rich foods. 4, minimize irritating liquids or substances to avoid damage to the nails. 5, often trim the nails, nails too long will lead to a lot of bacteria and microorganisms remain in the nail gap, easy to lead to many diseases. Reasonable diet can be more intake of high fiber and fresh vegetables and fruits, balanced nutrition, including protein, sugar, fat, vitamins, trace elements and dietary fiber and other essential nutrients, meat and vegetable collocation, food varieties diversified, give full play to the complementary role of nutrients between the food, the prevention of this disease is also very helpful.