1. Regional environmental factors: such as the stimulation of plateau climate, high altitude and lack of oxygen in the skin, which leads to the increase of red blood cells and the expansion and rupture of capillaries. Living in the cold zone, skin frostbite, leading to poor blood circulation, capillary congestion, red blood. In addition, in places with strong ultraviolet radiation, long-term exposure will lead to thinning of cuticle, expansion and rupture of capillaries and congestion, and also lead to the appearance of red blood.
Second, in the aspect of beauty care, long-term use of skin care products containing hormones, heavy metals, fruit acid for skin rejuvenation or photon rejuvenation will also lead to serious damage to the stratum corneum, serious expansion of capillaries under stimulation, and damage to red blood.
Third, as far as their own skin is concerned, some patients have delicate skin, thin cuticle and weak resistance, which is easily stimulated by the external environment, leading to telangiectasia and red blood.
Fourth, systemic diseases, if the body has chronic wasting diseases, will lead to long-term malnutrition of the face, rough and dry skin, exfoliation of the cuticle of the epidermis and emergence of red blood.
5. Occupations, such as cooks, welders and other long-term high-temperature workers, due to the long-term stimulation of high temperature, the skin is dry and dehydrated, the cuticle falls off, the skin loses its protective layer, and the capillaries expand seriously at high temperature, leading to the appearance of red blood.