What causes red blood vessels to appear on the face?

The causes of facial redness and visible blood vessels are complex and often result from the combined effects of multiple factors. Common causes include improper skincare, environmental factors, allergic dermatitis, rosacea, and corticosteroid-dependent dermatitis.

Frequent use of strong cleansing products or excessive exfoliation can damage the skin's stratum corneum, making the skin fragile and sensitive and allowing subcutaneous capillaries to become more visible, resulting in red blood vessels. Prolonged exposure to environments with sudden temperature changes, such as moving from a cold outdoor environment into a warm indoor space, can cause frequent contraction and dilation of facial blood vessels. Over time, this can reduce vascular elasticity and lead to visible capillaries. Contact with facial allergens, such as pollen, dust mites, or animal fur, or the use of skincare products containing irritating substances can trigger localized inflammation, causing symptoms such as redness, stinging, and visible blood vessels. Rosacea is a chronic inflammatory skin condition that commonly affects the central face and primarily involves facial blood vessels, characterized by abnormal vascular dilation and red patches, often accompanied by visible capillaries. Long-term use of glucocorticoids can damage the skin barrier, activate inflammatory cytokines, and induce or exacerbate skin inflammation, presenting as localized redness or dilated capillaries.

Facial redness and visible blood vessels have various causes, and understanding these causes can help implement appropriate preventive and improvement measures. In daily life, it is important to practice gentle skincare, avoid over-cleansing, use skincare products with repair and moisturizing functions, maintain a regular lifestyle, ensure sufficient sleep, avoid long-term alcohol abuse and other unhealthy habits, and learn to manage emotions effectively. If symptoms of visible blood vessels persist or worsen, timely medical consultation is recommended so that a specialist can develop an appropriate treatment plan based on individual circumstances.