为什么会得脚气

脚气，也称为足癣，是一种常见的真菌感染疾病。它主要通过真菌寄生在脚部皮肤上引起瘙痒、红斑、破裂和脱皮等症状。那么，为什么我们会得脚气呢？

首先，一种叫做足癣菌的真菌是脚气的主要致病原。这种真菌通常存在于潮湿的环境中，如公共浴池、更衣室和游泳池边。当我们赤脚走在这些地方时，真菌就会寄生在我们的脚部皮肤上，并开始引发感染。

其次，潮湿和温暖的环境是真菌生长繁殖的理想条件。当我们的脚部长时间处于潮湿状态时，例如穿着密封性较差的鞋子或袜子、出汗过多或不能及时更换湿润的袜子，真菌就可以迅速生长并导致脚气。此外，一些人天生有较多的汗腺或油脂分泌，更容易滋生真菌。

最后，损伤和划伤足部皮肤也是脚气的一个重要因素。当我们的足部皮肤遭受划伤、擦伤或割伤时，真菌就有机会进入并感染皮肤。因此，正确剪指甲、避免使用锐利的物品直接接触脚部皮肤以及穿戴合适大小的鞋子，可以帮助预防脚气。

总结起来，导致脚气的原因主要有真菌感染、潮湿温暖的环境以及足部皮肤的损伤。为了预防和治疗脚气，我们应该保持足部的干燥和清洁，勤换袜子和鞋子，避免赤脚在公共场所活动，并注意个人卫生习惯。

英文翻译对照：

Why do we get athlete's foot

Athlete's foot, also known as tinea pedis, is a common fungal infection. It is caused by fungi that parasitize the skin of the feet, causing symptoms such as itching, redness, cracking, and peeling. So why do we get athlete's foot?

Firstly, a fungus called Trichophyton rubrum is the main pathogen of athlete's foot. This fungus is typically found in moist environments such as public baths, changing rooms, and poolside areas. When we walk barefoot in these places, the fungus can parasitize our skin and begin to cause an infection.

Secondly, a damp and warm environment is ideal for the growth and reproduction of fungi. When our feet are exposed to prolonged moisture, for example by wearing poorly ventilated shoes or socks, excessive sweating, or not changing wet socks promptly, the fungus can rapidly grow and lead to athlete's foot. Additionally, some people naturally have more sweat glands or sebum secretion, making them more susceptible to fungal growth.

Lastly, skin damage and abrasions on the feet are also important factors in developing athlete's foot. When our feet are scratched, scraped, or cut, fungi have an opportunity to enter and infect the skin. Therefore, proper nail trimming, avoiding direct contact between sharp objects and the skin, and wearing properly fitting shoes can help prevent athlete's foot.

In summary, the causes of athlete's foot mainly include fungal infection, a damp and warm environment, and skin damage on the feet. To prevent and treat athlete's foot, we should keep the feet dry and clean, change socks and shoes regularly, avoid walking barefoot in public places, and maintain good personal hygiene habits.