Why do women lose their hair?

Female friends will experience hair loss after reaching a certain age, but they cannot find any cause of the disease. At this time, they should go to the hospital for a detailed examination in time to better understand the cause of their disease and prescribe the right medicine. Sometimes hair loss is caused by excessive androgen in their body. At this time, they should supplement themselves with estrogen.

1. Androgenic alopecia

It is an autosomal dominant inheritance, and its genetic characteristics are only expressed under the action of androgens.

2. Neurogenic hair loss

When mental stress is too great, hair loss often increases. Under the influence of mental stress, the body's arrector pili muscles contract, the hair stands upright, the autonomic or central nervous system functions become disordered, the hair follicles' hair papilla changes and becomes malnourished, resulting in the inhibition of hair growth function, the hair entering the resting phase and hair loss.

3. Endocrine hair loss

Hair growth is affected by a variety of endocrine hormones, so when endocrine abnormalities occur, it often causes hair loss diseases, such as postpartum and menopausal hair loss.

4. Nutritional hair loss

Hair is an outward manifestation of physical condition. Malnutrition and abnormal metabolism can cause changes in hair quality and color. Severe malnutrition can even lead to diffuse hair loss.

5. Physical hair loss

Common physical factors that cause hair loss include mechanical stimulation and exposure to radioactive substances.

6. Chemical hair loss

Chemical factors can cause changes in hair color or even hair loss.

7. Infectious hair loss

Infection by various pathogens is an important factor in hair diseases, mainly including infections by bacteria, viruses, fungi, spirochetes, parasites, etc.

8. Symptomatic hair loss

Certain systemic or local diseases may be associated with hair loss.

9. Congenital hair loss

Developmental defects cause complete loss or thinning of hair. Patients often have sparse and thin hair, or have normal hair at birth that falls out soon and does not grow back. It can be divided into isolated defects and other deformities.

10. Seasonal hair loss

Generally, hair loss is more likely in summer because the high temperature causes the pores to expand, leading to hair loss. Hair loss is less likely in autumn and winter because the temperature drops and the pores close.