Vitamin B deficiency is known as vitamin B deficiency. Usually, vitamin B deficiency can be relieved by general treatment, medication and surgery. 1. General treatment: Eat foods with high vitamin B content, such as eggs, fish, animal liver, etc., and consume more fresh fruits and vegetables and soy products to enrich dietary nutrition. 2. Medication: Vitamin B1 tablets, Vitamin B6 tablets and Vitamin B complex tablets can be used as prescribed by the doctor to help replenish Vitamin B. In addition, if the diarrhea is caused by chronic diarrhea, it can be treated by the doctor. In addition, if chronic diarrhea causes rapid loss of vitamin B in the body, which leads to vitamin B deficiency, loperamide hydrochloride capsule, elimination of Cardotril capsule, bifidobacterium capsule and so on can be used according to the doctor’s instructions. 3. Surgery: If the patient’s metabolism surges due to hyperthyroidism, which leads to rapid consumption of vitamin B, thus causing vitamin B deficiency, the patient’s vitamin B deficiency can usually be relieved by surgical removal of the thyroid gland. It is recommended that patients with vitamin B deficiency should seek medical attention in a timely manner and be treated accordingly under the guidance of a specialized doctor.