With the advent of the hot summer, many people are wearing shorts and sandals, Xiaoli envy, look down at their feet, they feel inexplicably sad up, a few years ago, she was still studying, long-term haphazardly wear slippers, difficult gray nails followed, she tried various methods, the symptoms are difficult to relieve. What are gray nails? Gray nails, that is, the common name of onychomycosis, also known as “goose claw wind” in Chinese medicine, is a chronic infectious nail disease that occurs when dermatophytes, yeasts and molds invade the nail beds under the nail plate and nail plate. Nail fungal disease is a common and frequent disease in dermatology, and a relatively troublesome disease to treat. Gray nail manifestations include nail turbidity and loss of luster, nail thickening, uneven nail surface, nail separation, discoloration, nail plate atrophy, nail plate shedding, nail plate buckling or hook nail, or manifested as onychomycosis. Middle-aged and elderly people, diabetics, people with relatively low immune function, or people with traumatized nails, easy sweating, and long hours of wearing tight shoes and socks are all potentially susceptible to nail fungus disease. Why do you get gray nails? Cause 1: Personal hygiene habits People who love sports are more likely to suffer from gray nails than normal people, and there is a direct link between personal hygiene habits and gray nails. As mentioned above, Xiaoli, who wears slippers carelessly for a long time and pays no attention to hygiene, may be taken advantage of by the fungus, which is closely related to the production of gray nails. And those who often take a bath, change clothes diligently the probability of suffering from gray nails is relatively low, often in public bathrooms and poor sanitary conditions of the swimming pool and other public places to bathe, swimming people are more likely to be infected with gray nails, pet cats, pet dogs, people are also gray nails of the high incidence of the population. In addition, some chronic diseases such as malnutrition, diabetes, hyperthyroidism and other diseases patients suffering from gray nails is also more likely, AIDS, advanced cancer and other serious illnesses, not only the incidence of fungal ringworm disease is high, and stubborn and difficult to treat. Gray nail reason two: the surrounding environment factors gray nail is an important condition of high temperature, humidity, so relative to winter, dry season, summer and rainy season has become a high incidence of gray nail season, and part of the drought-resistant and cold-resistant ringworm gray nail fungus no matter what the season its incidence rate is very high, in addition, the patient’s living, working environment is also an important reason for the incidence of gray nail, such as closed, stuffy wet place its incidence rate is higher than well-ventilated. In addition, the patient’s living and working environment is also an important reason for the development of gray nails, such as the closed, stuffy and wet place, the incidence of which is higher than the well-ventilated place. Gray nails cause three: individual genetic factors genetic factors is another important factor leading to gray nails continue to not heal, and its cause and autosomal dominant inheritance related. The cause of gray nails is related to autosomal dominant inheritance. 4: female pregnancy During pregnancy, due to endocrine disorders in the body, the resistance of the mother decreases, and it is easy to appear the phenomenon of malnutrition of the fingernails (toes), thus prompting fungal infections, causing gray nails. Gray nails cause five: the influence of drugs Long-term use of antibiotics, immunosuppressants, corticosteroids and other drugs will make the body’s normal flora imbalance, resulting in a large number of fungal reproduction and lead to gray nails.