1, the influence of regional and climatic factors: such as plateau climate, high altitude, skin hypoxia, local increase in the number of red blood cells, or cold stimulation in cold areas, or frostbite that hinders blood circulation and stagnates blood vessel walls; Or air drying, or sandstorm climate, coupled with sun exposure, makes the tolerance of capillaries exceed the limit, leading to capillary expansion and rupture.

2, occupational factors: long-term work at high temperatures, such as chefs, welders and other faces often suffer from flame fumigation. Workers who work outside the home are exposed to intense ultraviolet radiation for a long time, which will destroy the stratum corneum and cause poor capillary dilation.

3, improper beauty care: long-term use of high-grade cosmetics has made the skin in a state of eutrophication, or the use of inferior cosmetics, which contain heavy metals or acidic ingredients or hormones in skin care products; Or have received cuticle polishing, photon rejuvenation, etc. Damage the stratum corneum on the skin surface; Or "benzoic acid" contained in cosmetic skin changing products repeatedly stimulates delicate and delicate facial parts, making the epidermis thinner, and the capillaries are easy to expand and rupture under the irradiation of ultraviolet rays. In addition, skin immunity is fragile due to skin changing, and frequent facial suction nursing in beauty salons can also lead to vasodilation and rupture. Local long-term intermittent use of corticosteroid ointment can also cause telangiectasia, skin thinning and atrophy.