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皮肤做为人体最大的器官，是抵御外界的第一道防线，具有防护、代谢、免疫等诸多作用。皮肤衰老是人体衰老外在最直观的表现，分为内源性衰老和外源性老化。中医学认为皮肤健美有赖于营血的濡养与卫气的防护。若脏腑虚衰、营血不足，则肌肤失荣，出现皮肤衰老，本文试从营卫二气浅析其对皮肤衰老的影响。“,”The skin is the largest organ in the body and it is the first line of defense against the outside world. It has many functions such as protection, metabolism,immunity and so on. Skin aging is the most intuitive performance of human aging, it can be classified as intrinsic aging and extrinsic aging. In traditional Chinese medicine(TCM),it is believed that skin fitness depends on ying blood to nourish and defensive qi to protect. If the viscera deficiency, nutrient qi and blood being insufficient, the skin will be cervical carcinoma with cachexia, appearing skin aging.This article tries to analyze the effect of ying-qi and wei-qi on skin aging.