What's going on with a missing piece of hair?

In real life, many people are prone to missing patches of hair, and there are many reasons for this. Generally, this is a problem caused by alopecia areata, and there are many reasons for this. It is usually caused by a lack of vitamins or trace elements in the body. People with alopecia areata need to be treated in time. You can use topical medications and pay attention to hair cleanliness.

What is the problem of missing a piece of hair?

It should be alopecia areata, which is generally related to the lack of trace elements. It is recommended to have a blood test on an empty stomach. Check the trace elements. If there is a lack of targeted supplementation, the hair will gradually return to normal and new hair will generally grow within three months.

Causes

The cause is unknown. There is lymphocyte infiltration around the hair follicles, and the disease is sometimes combined with other autoimmune diseases (such as vitiligo and atopic dermatitis). Therefore, it is currently believed that the occurrence of this disease may have an autoimmune pathogenesis. Genetic predisposition is also an important factor, which may be related to HLA type II. 25% of cases have a family history. In addition, it may also be related to neurotrauma, mental disorders, infectious lesions and endocrine disorders.

Clinical manifestations

It can occur at any age, but is more common in young and middle-aged people, and there is no significant difference in incidence between the two sexes. The lesions appear as round or oval non-scarring alopecia, and "exclamation mark"-like hairs are often seen at the edges of the alopecia areata. Loss of all or almost all hair is called alopecia totalis. The loss of all hair on the body (including body hair) is called alopecia universalis. Creeping alopecia may also occur. There are no other abnormalities in the skin of the affected area except the absence of hair.

Sometimes nail abnormalities may occur, the most common of which is nail pitting, as well as brittle nails, nail detachment, and ingrown nails. It may also be complicated by cataracts, Down syndrome, thyroid disease and vitiligo.

Differential Diagnosis

It needs to be differentiated from tinea capitis, cicatricial alopecia, traction alopecia, syphilitic alopecia, and androgenic alopecia, etc.

treat

Most common alopecia areata tend to heal naturally, but a few cases recur, making them difficult to treat. But there are many treatments that can be combined to treat hair loss.

1. Topical medication

(1) Minoxidil 5% minoxidil cream or solution, applied once or twice a day, may be related to its vasodilatory effect.

(2) Anthralin 0.5% to 1% Anthralin ointment or cream is a primary irritant. Apply externally 1 to several times daily, until mild dermatitis occurs on the local skin.

(3) The contact sensitizer diphenylcyclopropene ketone (DCP) is the most commonly used.

(4) Topical or intraperitoneal glucocorticoids. Topical application of 0.05% dexamethasone and 50% dimethyl sulfoxide solution often has better therapeutic effects than creams.