Vitamin B family mainly includes vitamin B1, vitamin B2, vitamin B3, vitamin B5, vitamin B6, vitamin B9, vitamin B12, etc., which is one of the indispensable nutrients for human body and has a regulatory role in human metabolism. If the human body is deficient in vitamin B, some clinical symptoms may appear, commonly in the following areas: 1, skin abnormalities: vitamin B deficiency may lead to poor skin quality, facial skin becomes rough, pigmentation, red blood, serious acne, pigmentation and dermatitis may appear; 2, mouth ulcers: when patients lack of vitamin B, may appear gums, periodontal swelling and pain, bleeding, also various diseases such as mouth ulcers, stomatitis, periodontitis, etc. may appear; 3, foot disease: is due to vitamin B1 deficiency caused by neurological, mental, cardiovascular and other damage, a series of abnormal symptoms of the nervous or cardiac system, such as increased heart rate, breathing difficulties, limb movement disorders, etc.; 4, gastrointestinal discomfort: such as loss of appetite, nausea, vomiting and other symptoms, gastrointestinal power disorders, adolescents may The phenomenon of physical growth retardation; 5, anemia: when lacking vitamin B12, symptoms of macrocytic anemia may appear, which can be specifically manifested as dizziness, weakness, numbness and weakness of the limbs, and in severe cases, fainting may occur. In addition to the above-mentioned symptoms, such people may suffer from mental weakness, memory loss and mental inflexibility. If patients feel that there is a possibility of vitamin B deficiency, they need to go to the hospital after diagnosis and be treated with medication under the guidance of a doctor. The daily requirement of vitamin B can be replenished through a reasonable diet or moderate intake of foods rich in vitamin B. There is no need for excessive supplementation of pharmaceutical preparations.