What does itchy eyebrows indicate?

Strictly speaking, itchy eyebrows do not have any warning signs. It may be caused by some lesions on your facial skin, such as oily dermatitis. If this disease occurs, it will cause itching symptoms on your eyebrows. In addition, the probability of this happening in babies may become higher, and it will gradually spread as the disease worsens.

Due to the different locations and severity of damage, the clinical manifestations of seborrheic dermatitis are also different:

1) Seborrheic dermatitis of the scalp: It starts as large grayish white bran-like or greasy scaly patches, which gradually expand and merge into large patches with clear boundaries. In severe cases, the entire scalp is covered with thick greasy, smelly crusts and hair loss occurs.

2) Seborrheic dermatitis on the face, ears, behind the ears and neck: It often spreads from the scalp and appears as yellow-red or greasy scaly macules.

3) Beard: There are two types. One is mild redness and swelling of the hair follicle opening, inflammation accompanied by small light brown scabs, which is called "beard sore", which is stubborn and difficult to cure. The other type is disseminated red, greasy scaling with deeper pustules that involve the entire hair follicle.

4) Trunk: Initially, it is small reddish-brown follicular papules with greasy scales, which gradually develop into annular patches with fine bran-like scales in the center, dark red papules and large greasy scales on the edges. It often occurs on the chest and between the shoulder blades.

5) Wrinkles: more common in obese middle-aged people, the skin lesions are in the form of disseminated friction erythema with clear borders and greasy scales. 6) Limbs: Lesions appear as eczematous patches.

7) Infants: manifested as erythema, scaling, round or oval, with clear borders.

Seborrheic dermatitis occurs on the basis of excessive sebum secretion. It often starts from the head and spreads downward, and is more likely to occur in areas with more sebaceous glands. Its main clinical manifestations are greasy, scaly, yellow-red patches with clear boundaries and conscious itching. Because it is a common disease, in order to avoid misdiagnosis, it must be differentiated from other diseases:

(1) Psoriasis lesions on the head and face are scattered in flakes with clear boundaries and thick scales that feel uneven to the touch. The hair does not fall out, but short hair gathers into bundles. In severe cases, the lesions may connect into large patches, extend to the front hairline, and invade the forehead several centimeters. When the scales are scraped off, there will be a film phenomenon (that is, when the scales are scraped off, there will be a shiny red film underneath) and bleeding phenomenon (that is, when the film is lightly scraped, scattered small bleeding spots may appear). The film phenomenon and bleeding phenomenon are important characteristics of psoriasis lesions.

(2) Pityriasis rosea often occurs on the neck, trunk, and proximal extremities. It appears as an oval macules with a slightly yellow center and slightly raised, light red edges covered with white bran-like scales. It starts as a single lesion, called a mother spot; the mother spot gradually grows larger, with a diameter of 2 to 5 cm or larger. Sometimes 2 to 3 mother spots appear at the same time. After 1 to 2 months, smaller erythema appears on the trunk. The long axis of the rash is consistent with the skin texture. It usually disappears on its own in 4 to 6 weeks without recurrence.

(3) The edges of tinea corporis lesions are raised and narrow. The boundaries are clear, with annular lesions that heal in the center and expand to the periphery. Pruritus is obvious, and patients often have a history of onychomycosis of the hands and feet.