Lecithin, or lecithin, is an oily substance found in animal and plant tissues and egg yolk. Since lecithin contains a certain amount of inositol, which is an important nutrient for hair, moderate intake of lecithin helps promote blood circulation in the scalp and replenish nutrients for hair, so lecithin can be taken for severe hair loss. However, patients cannot treat hair loss by taking lecithin, they should identify the cause of hair loss and then carry out targeted treatment. There are many causes of hair loss, such as disorders of fat metabolism, genetic factors, lifestyle factors, endocrine factors, etc. In addition, malnutrition and overuse of the brain may also cause the phenomenon of hair loss. At this time, in addition to avoiding the causes, patients can also be treated by drugs under the guidance of professional doctors, such as minoxidil and other common. In addition, if the patient’s hair loss symptoms are caused by baldness, they can also be treated by local injection of glucocorticoids. If the hair loss symptoms are serious and the hair follicles have shrunken and degenerated, hair transplantation can also be considered. Hair transplantation mainly involves transplanting better hair follicles from other parts of the scalp to the parts with less hair, but it can only be determined after a professional doctor’s diagnosis. In daily life, patients with severe hair loss should try to regular work and rest, do not stay up late, to ensure sufficient sleep time, try not to eat too much sweet food, or spicy stimulating food, try to light diet as much as possible, for hair loss symptoms have a certain alleviating effect.