There are many reasons for hair loss: 1, mental tension can cause hair loss, some people work under stress and anxiety, often cause hair loss. 2, insomnia patients, people suffering from chronic diseases, accompanied by insomnia, because of long-term poor rest, lack of hair nutrition, over time will also cause hair loss. 3, trace elements, vitamins and cystine deficiency, will also lead to hair loss. 4, people suffering from malignant tumors, after doing chemotherapy, because The hair loss can be caused by the chemotherapy drugs affecting the hair growth cycle. 5, when the seasons change, the unbalanced level of human hormone secretion will cause hair loss. 6, Chinese medicine believes that the lung is the master of the skin and hair, its Hua in the hair, since the hair has problems, indicating that the lung function is also weakening, you can use some drugs to supplement the lung qi, with lily boiled porridge to drink, take the pill can be supplemented.