Under normal circumstances, people naturally lose about 50 to 60 hairs per day, while new hair grows at the same time, which is a normal process of hair renewal and there is no need to worry too much. However, it should be noted when the amount of hair shedding exceeds 100 per day. This condition may be a warning sign of pathological alopecia, meaning that the number of hairs that are falling out is greater than the number of hairs that are growing. Even people with thick hair may be at risk of thinning hair and even baldness, which will undoubtedly cause considerable psychological stress.
The periodic renewal of hair on the scalp is a natural process that involves the growth, degeneration, resting phase of the hair follicle, and this cycle ensures the continuous renewal of the hair. Normally, human hair is in different stages of growth at the same time, with about 80% of the hair in the growth phase, while the remaining hair may enter the degenerative or resting phase and then fall out naturally. Normally, about 70 to 100 hairs fall out each day, which is roughly the same as the amount of new hair, creating a balance of growth and shedding. The daily growth rate of hair is between 027 to 04 mm, therefore, daily hair loss should not cause undue concern.
However, if the amount of hair loss persists in more than 100 hairs on a day, and this phenomenon persists for two to three months or more, it may be a sign of pathological hair loss. Pathological alopecia may manifest as a receding hairline, particularly in the frontal horns, or thinning of hair at the top of the head. It is important to note that it is only considered a sign of hair loss if it has a small white bump (i.e., hair follicle) at the end of the hair that has fallen out. In such cases, it is advisable to seek professional medical advice to diagnose the possible problem and the most appropriate method.
Kidney function and development: The Yellow Emperor's Neijing proposes that human development is closely related to the strength of kidney function. Specifically, when kidney function is vigorous, hair growth is good; Conversely, when kidney function is weakened, it may lead to hair loss.
Lung Health Impact: According to TCM theory, the lungs are not only responsible for breathing, but also related to the health of the body surface and hair. Poor lung function can not only cause respiratory diseases, but also lead to dry hair loss.
Circulation problems: Poor blood circulation, especially in the upper part of the body, can hinder the delivery of nutrients to the hair, causing the hair to fall out due to insufficient nourishment.
Abnormal blood heat: Some literature states that overheating the blood can affect the normal growth of hair, which may lead to premature graying or shedding, which is usually related to the lack of fire and water in the body.
Nutritional deficiencies: If there is not enough blood or nutrients in the body, the hair is not adequately nourished, which can also lead to shedding.
Localized malnutrition: Malnutrition in certain areas, such as the scalp, can cause hair to thin or fall out completely, which is known in Chinese medicine as "ghost shaving".
Influence of dietary habits: Excessive consumption of sweet, fatty, greasy or raw and cold foods can damage the spleen and stomach, causing dampness and heat in the body, which in turn affects hair health.
Emotional factors: Long-term anxiety and excessive thinking can damage the function of internal organs, especially the liver and spleen, affecting the production of qi and blood, which can lead to hair loss.
Congenital factors: Some people have hair loss due to congenital factors, such as poor hair growth or abnormal color that existed at birth.