Hair loss during weight loss may be related to a variety of factors, generally resting hair loss, common causes are nutritional deficiencies, mental factors, drug effects. When hair loss occurs during weight loss, it is recommended to control the speed of weight loss and avoid excessive dieting to lose weight, or even the need to stop losing weight. 1. nutritional deficiency: severe lack of nutritional intake due to excessive dietary restrictions during weight loss, resulting in a lack of protein, vitamins, trace elements and other nutrients in the body, which can cause a lack of nutrients in the head skin and hair follicles, leading to weight loss hair loss. 2. mental factors: if the requirements for self are relatively high and dissatisfied with the body There may be serious anxiety, irritability, etc., and even affect normal sleep, resulting in hair can not grow normally, or even appear to fall out; 3, drug impact: some weight loss people are taking some drugs to help lose weight, the drug itself may also lead to hair loss, it is recommended to stop using weight loss drugs to alleviate the phenomenon of hair loss. It is recommended that weight loss people lose weight healthily, do not over diet, should consume enough nutrition, such as chicken, beef, milk, etc., as well as the right amount of cereals, such as millet, corn, etc., balanced nutrition. Daily appropriate exercise, such as swimming, jumping rope, etc., should also ensure quality sleep, happy mood, do not be overly anxious about the figure, do not just take drugs to lose weight, to avoid affecting health.