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Hair follicle plug

Introduction
Cause
Examine
Diagnosis

Introduction

Introduction The follicular horn plug is due to the keratinization at the opening of the hair follicle sebaceous gland, forming a so-called "corner plug", which causes the pore to occlude after hardening. The appearance is like a pinch-like small papule, scattered in a scattered manner, the color is flesh-colored, reddish-brown, brown or gray-black, most of the rashes have no itching symptoms. The appearance of follicular keratosis is very similar to "goose bump", but the general "goose bump" is a temporary skin change due to the contraction of the vertical muscles caused by climate or mood; and the formation of follicular keratosis Pimples are a persistent state.

Cause

Cause

It is caused by keratosis of the keratinized pores, and the symptoms are pores of keratotic papules. The cause is not clear. Some patients have hypothyroidism or have Cushing's syndrome. There are also some patients who develop this type of skin disease after injection or taking corticosteroids. Common in patients with atopic tendency, or hereditary, mostly in the same family, so further examination is needed before treatment, and which type of diagnosis is included.

Examine

an examination

Related inspection

Skin lesion

Diagnostic points of follicular keratosis:

1. More common in adults, both sexes can be combined.

2. Occurs in the underarms, side chest, buttocks and thighs, symmetric distribution.

3. The lesion is centered on the hair follicle, and it is black-pointed and keratinized. The center is attached to the hair follicle, and the outer part is outwardly stretched into a circular scale-like keratinized patch of 5-6 mm. The edge is lifted, and the pigment is slightly shallow.

4. No symptoms.

5. In a chronic course, some can subside.

Diagnosis

Differential diagnosis

The symptoms of follicular keratosis need to be distinguished from the following symptoms.

Peripheral keratinization: The disease is an autosomal dominant hereditary disease with keratotic papules at the mouth of the hair follicle and containing mane. The cause is unknown, taking hormone drugs is easy to suffer from this disease, the disease is closely related to endocrine. The disease and rash can be concurrent. The primary rash is a horny hair with a large needle tip that is consistent with the hair follicle. If the angle plug is forcibly removed, a cup-shaped depression is seen, but it quickly returns to its original state.

Diagnostic points:

1. More common in male and female youth during puberty.

2. Skin lesions mainly occur on the extension side of the upper arm, symmetrically distributed, and the severe condition also occurs on the extension of the thighs or the buttocks.

3. The skin is dry, with small follicles of keratotic follicles, densely integrated tablets, and rough to the shape of a sickle, showing normal skin tone or reddish color.

4. The condition is slightly heavier in winter, and the condition is relieved in summer. It is often accompanied by pruritus in winter.