What causes eyebrows to turn white? Is it premature aging?

Graying of eyebrows is quite common in daily life. Many people mistakenly believe that this phenomenon is caused by premature aging. In fact, there is no connection between graying of eyebrows and premature aging. The real reason that can cause graying of eyebrows is actually vitiligo.

Generally, whitening of eyebrows is a precursor to vitiligo. Vitiligo is a common and frequent pigmented skin disease. The disease is characterized by local or generalized depigmentation forming white spots. It is an acquired localized or generalized skin depigmentation disorder. It is a common skin disease that affects beauty. It is easy to diagnose but difficult to treat.

reason

1. Genetic abnormality Vitiligo is an autosomal dominant genetic disease. According to foreign statistics, 30% of patients have a family history, and both monozygotic twins are affected. The reported positive family history rate in China is 3% to 12%, which is lower than that in foreign countries.

2. The rate of combined autoimmune diseases is relatively high among patients with autoimmune diseases and their family members, the most common of which are thyroiditis, hyperthyroidism or hypothyroidism, diabetes, chronic adrenal insufficiency, rheumatoid arthritis, malignant melanoma, etc. A variety of autoantibodies can be detected in the serum of vitiligo patients.

3. Abnormalities of mental and neurochemical transmitters: About 2/3 of patients suffer from mental trauma, excessive tension, depression or frustration at the onset or development of skin lesions.

4. Melanocyte self-destruction: Epidermal melanocytes in vitiligo partially or completely lose their function.

5. Lack of trace elements and reduced copper content in the body are related to the onset of vitiligo.

6. Other factors: Trauma, hyperthyroidism, diabetes, etc. may be associated with vitiligo.

[What examinations should patients with vitiligo undergo]

1. Electrolyte and trace element detection.

2. Urinalysis.

3. Thyroid function test.

4. Metabolite detection. (Concurrent diseases) Patients may have concurrent diseases such as hyperthyroidism or hypothyroidism, diabetes, porphyria cutanea tarda, chronic adrenocortical insufficiency, chronic active hepatitis, herpes zoster, pernicious anemia, halo nevus, chronic persistent erythema, alopecia universalis or alopecia areata, drug rash, atopic dermatitis, psoriasis, parapsoriasis, scleroderma, malignant tumors, bronchial asthma, rheumatoid arthritis, acromegaly, and lichen sclerosus atrophicus.