Patients with hair loss are often seen in outpatient clinics and they are confused and worried about why they are losing their hair. So, today we will talk to you about what are the causes of hair loss? In daily life, many people think that hair loss is a very common phenomenon. The fact is that many hair fall has a cause. If not discovered and treated in time, it is likely to cause serious harm. So what exactly are the causes of hair loss? Let’s learn more about it! The causes of hair loss mainly include the following: 1, blood deficiency and kidney deficiency lead to hair loss: Chinese medicine believes that hair loss is the result of blood deficiency and kidney deficiency. 2, endocrine disorders lead to hair loss: the body androgen secretion too much may cause hair loss. 3, immune dysfunction leads to hair loss: according to clinical statistics surface, lupus erythematosus, ulcerative colitis and other immune system disorders are often accompanied by hair loss phenomenon. 4, genetics lead to hair loss: hair loss patients with family history accounted for 20%. In heredity, dominant heredity for men and recessive heredity for women, so male hair loss patients tend to be more than female patients, medically known as male pattern baldness. 5, bad eating habits lead to hair loss: too much love of meat, alcohol, usually when the body will produce a lot of cholesterol, will lead to make too much sebum, thus affecting the blood supply of the hair follicles. To a certain extent, the normal growth of hair is hindered, resulting in hair loss. 6, seborrheic alopecia: often appear in young and middle-aged people, manifested as a thick oily secretion on the scalp, shiny hair, thin and fine, or dry hair, dandruff, lusterless, thin and slender. 7, pathological hair loss: mainly due to viruses, bacteria, high heat on the hair mother cells have damage, inhibit the normal division of hair mother cells, so that the hair follicles in a state of shock and lead to hair loss, such as acute infectious diseases, long-term use of certain drugs. 8, chemical alopecia: harmful chemical substances on the scalp tissue, hair follicle cell damage resulting in hair loss. 9, obesity alopecia: a large number of saturated fatty acids metabolized in the body to produce waste, blocking the hair follicles leading to hair loss. 10, nutritional alopecia: digestive and absorption dysfunction causes malnutrition resulting in hair loss.