The manifestations of vitamin deficiency are mainly based on different vitamin deficiencies and have corresponding clinical manifestations. 1. Lack of vitamin A: there may be dry eyes, or even dry eye, night blindness, vision loss. 2. Lack of B vitamins: may appear to have various manifestations of beriberi, peripheral nerve damage, numbness of the hands and feet, may appear in the whole body of different degrees of edema, and even heart failure, digestive disorders, anorexia and so on. 3. Lack of vitamin C: there may be redness and swelling of the mucous membrane of the mouth and lips, and even bleeding gums, erosion and peeling of the skin, there may also be oral ulcers, loose teeth and so on. 4. Lack of vitamin D: can lead to calcium and phosphorus metabolism malfunction, bone changes such as chicken breast, funnel chest, muscle relaxation, fatigue, osteoporosis, and even easy to fracture. 5. Lack of vitamin E: there may be different degrees of anemia, pale, with different degrees of general weakness and other symptoms. The above examples of five common vitamin deficiencies performance but vitamin variety, the emergence of discomfort, please consult a doctor in a timely manner, under the guidance of a physician to identify the causes, to supplement.