As the temperature rises, nail services are getting hotter and hotter, and the various ways of nail art make the hands and feet bloom beautifully in a high profile, which is favored by women who love beauty. However, experts say that although the nail is beautiful, hidden health problems are many, such as excessive trimming, especially on both sides of the nail and skin tissue connected parts are over-trimmed, and even trimmed to bleeding, the two sides of the nail edge to support the cornea tissue trimmed off too much, not easy to heal, if not pay attention to care, especially prone to inflammation, causing both physical and mental pain to patients. Therefore, the general public is especially reminded that when trimming nails, especially fingernails and big toe nails, special attention should be paid to moderate trimming: that is, do not trim too short and never hurt the parts of the nail that are connected to the skin tissue on both sides, as long as regular moderate trimming is maintained. In addition to nail trimming, there are other factors that can cause perineuritis: for example, hollow nails caused by gray nail decay cause perineuritis; the front tip of the shoe is too narrow so that the nail is squeezed causing perineuritis, etc.