Hair loss is divided into several types.

Written by Zhu Zhu

Dermatology

Updated on September 10, 2024

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There are many types of hair loss, mainly including androgenic alopecia, neurogenic alopecia, endocrine alopecia, nutritional alopecia, and physical alopecia. Androgenic alopecia is clinically known as seborrheic alopecia, while neurogenic alopecia is also called alopecia areata. Therefore, if you notice a significant amount of hair loss, it is essential to promptly identify the cause. In addition to the types of hair loss mentioned above, there may also be chemical-induced hair loss, infectious hair loss, symptomatic hair loss, congenital hair loss, seasonal hair loss, and other types.

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Written by Huo Ze Jun

Traditional Chinese Medicine

1min 14sec

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The difference between kidney deficiency type hair loss and kidney insufficiency type hair loss.

Kidney deficiency-related hair loss and kidney insufficiency-type hair loss are essentially the same thing; they basically mean the same thing. Kidney deficiency can be divided into several types: one is kidney yin deficiency, typically characterized by heat in the palms and soles, dry mouth, and dry tongue; another is kidney yang deficiency, where the most typical symptom is feeling cold; there is also kidney qi deficiency, which mainly manifests as lack of strength and dislike for movement; another one is kidney essence deficiency, which includes symptoms such as dizziness and blurry vision, and can cause hair loss, among other things; there is also unstable kidney qi, where symptoms include various involuntary losses, inability to control urination, and stool that is prone to diarrhea. These symptoms belong to either unstable kidney qi or some organs prolapsing. These are various manifestations of kidney deficiency. The main clinical manifestations of hair loss due to kidney deficiency are thinning hair, accompanied by a lack of vigor, fatigue, and weakness in the lower back and legs. Its treatment should primarily focus on nourishing the kidneys. On the other hand, the type of hair loss often referred to in men, caused by an excess secretion of androgens, which leads to early balding in men, is generally not caused by kidney deficiency and should not be treated by nourishing the kidneys.

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Written by Qu Jing

Dermatology

1min 3sec

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How to deal with seborrheic hair loss and itchy scalp?

Scalp itching associated with seborrheic hair loss can arise from two possible scenarios. One is that the itching is due to seborrheic dermatitis accompanying the hair loss. The other possibility is that the scalp, being greasy, provides a conducive environment for the proliferation of microbes, leading to a fungal infection of the scalp, which then results in itching and increased dandruff. In cases of seborrheic dermatitis, the affected area may show erythema and papules with oily scales or crusts, and there may even be exudation, crusting, and erosion, resembling eczema. The local treatment should primarily focus on degreasing, anti-inflammation, and itch relief. When fungal infection is also present, antifungal treatment becomes the priority. Ketoconazole shampoo can be used in such cases, applied three times a week for a period of 6-8 weeks.

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Written by Liu Gang

Dermatology

47sec

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What are the causes of male seborrheic alopecia?

Male seborrheic alopecia is also called androgenetic alopecia, which is related to excessive secretion of endogenous androgens leading to vigorous secretion of sebaceous glands. Excessive secretion of sebaceous glands makes the hair follicles loose and buoyant, so the hair roots are not firm and will fall out. It is also related to family genetics; most men in the same family will exhibit similar symptoms of hair loss. Once this condition occurs, formal treatment can bring about some improvement. However, most men may experience recurrent hair loss as they age into their 40s or 50s, and this hair loss is irreversible. Generally speaking, it becomes difficult to completely cure with age.

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Written by Qu Jing

Dermatology

1min 44sec

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Difference between seborrheic dermatitis and seborrheic hair loss

Seborrheic dermatitis, also known as seborrheic eczema, is a chronic inflammatory skin disease that occurs in areas with excessive sebum secretion, such as the face, chest, and back. Seborrheic dermatitis is not the same as seborrheic hair loss, although some patients with seborrheic dermatitis may also experience hair loss. Generally, seborrheic dermatitis starts on the face and then spreads downwards to other areas, accompanied by varying degrees of itching, and is commonly seen in adults and newborns. Seborrheic dermatitis is associated with factors such as psychological stress, dietary habits, deficiencies in B vitamins, alcohol consumption, and sleep deprivation. As it often starts or is primarily localized on the scalp, symptoms can worsen and spread to other areas. The disease tends to occur in areas that are oily, hairy, and sweaty. As the sebaceous glands open into the hair follicles, the initial skin lesions of seborrheic dermatitis are usually small, red papules around the hair follicles. As the condition progresses, these papules can develop into red patches. Some patients may also have oily scales or crusts, as well as varying degrees of hair loss.

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Written by Du Rui Xia

Obstetrics

44sec

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How long will postpartum hair loss last?

Postpartum hair loss is a common physiological phenomenon among women after giving birth, but it is unpredictable how long the hair loss will last. For most women, postpartum hair loss can persist for six months to a year, after which hair growth gradually returns to normal. It is important to prevent hair loss after childbirth. For example, it is advisable not to wash hair too frequently; washing every three days is generally sufficient. Additionally, it is important to enhance nutrition and maintain a balanced diet, as the most important source for hair is protein. Therefore, consuming more protein-rich foods is recommended.