石棉是一种常见的矿石，由于其耐高温和绝缘性能，曾被广泛用于建筑材料、绝缘材料和耐火材料等领域。然而，石棉含有有害的纤维结构，对人体健康造成潜在的威胁。当我们接触到石棉并将其弄到身上时，可能会出现痒的感觉。那么，为什么会痒呢？

首先，石棉纤维具有刺激性。石棉纤维微细而坚硬，经常会悬浮在空气中，并且很容易附着在衣服或皮肤表面。当石棉纤维进入皮肤表层，它们可能会刺激神经末梢，引起痒感。刺激后，我们的身体会产生瘙痒的感觉，促使我们不由自主地去抓挠。

Firstly, asbestos fibers are irritants. Asbestos fibers are tiny and hard, often suspended in the air, and can easily adhere to clothing or the surface of the skin. When asbestos fibers enter the superficial layer of the skin, they may stimulate nerve endings, causing itching. This stimulation prompts our body to produce an itchy sensation, leading us to involuntarily scratch the affected area.

其次，石棉纤维可能导致过敏反应。对于某些人来说，接触石棉后可能会引发过敏反应，例如皮肤红斑、水肿或湿疹等。这些过敏反应造成的刺激会导致痒感。过敏反应是机体对特定物质的免疫系统异常反应，石棉纤维作为外源性刺激物质，可能引发免疫系统的异常反应，进而导致瘙痒等过敏症状。

Secondly, asbestos fibers can cause allergic reactions. For some individuals, exposure to asbestos may trigger allergic reactions such as skin redness, swelling, or eczema. The irritation caused by these allergic reactions can lead to itching. Allergic reactions are abnormal immune responses of the body to specific substances. Asbestos fibers, being external irritants, can potentially trigger abnormal immune responses, resulting in itching and other allergic symptoms.

此外，石棉纤维的存在可能诱发皮肤炎症。石棉纤维进入皮肤后，可能激活免疫细胞和炎症反应，导致皮肤发炎。皮肤炎症的典型表现之一就是瘙痒感。当皮肤受到炎症刺激时，体内的化学物质会产生变化，包括组织介质和细胞因子的释放，进而刺激神经末梢引起瘙痒。

Furthermore, the presence of asbestos fibers can trigger skin inflammation. After asbestos fibers enter the skin, they can activate immune cells and inflammatory responses, leading to skin inflammation. Itching is a typical manifestation of skin inflammation. When the skin is exposed to inflammatory stimuli, chemical changes occur in the body, including the release of tissue mediators and cytokines, which in turn stimulate nerve endings and cause itching.

要缓解石棉引起的瘙痒感，我们应该迅速将石棉纤维从皮肤上清除掉。使用湿毛巾或纸巾轻轻擦拭皮肤表面，可以有效地去除附着在皮肤上的石棉纤维。此外，保持皮肤清洁并及时清除污垢也是非常重要的，这有助于防止石棉纤维积聚和接触皮肤。

To alleviate the itching caused by asbestos, it is important to promptly remove the asbestos fibers from the skin. Using a damp cloth or tissue to gently wipe the surface of the skin can effectively remove asbestos fibers that are adhered to the skin. Additionally, maintaining skin cleanliness and promptly removing dirt is crucial, as it helps prevent the accumulation of asbestos fibers and contact with the skin.

总结起来，石棉引起痒的原因主要是其纤维的刺激性、过敏反应以及皮肤炎症。了解并注意石棉的潜在危害，并采取适当的预防和清除措施，有助于避免石棉与皮肤接触，减少瘙痒等不适感的发生。

In summary, the main reasons why asbestos causes itching are its fiber's irritant properties, allergic reactions, and skin inflammation. Understanding and being aware of the potential hazards of asbestos and taking appropriate preventive and removal measures can help avoid contact between asbestos and the skin, reducing the occurrence of itching and discomfort.

英文翻译对照：

Asbestos can cause itching when it comes into contact with the body. But why does that happen?

Firstly, asbestos fibers are irritants. These tiny, hard fibers can easily become airborne and stick to clothing or the surface of the skin. When these fibers enter the top layer of the skin, they can stimulate nerve endings and cause itching. The body then responds with an itching sensation, prompting us to scratch the affected area involuntarily.

Secondly, asbestos fibers may trigger allergic reactions. For some individuals, exposure to asbestos can lead to allergic reactions such as skin redness, swelling, or eczema. The irritation caused by these allergic reactions can result in itching. Allergic reactions occur when the body's immune system reacts abnormally to certain substances. Asbestos fibers, as external irritants, can potentially trigger abnormal immune responses, leading to itching and other allergic symptoms.

Furthermore, the presence of asbestos fibers can induce skin inflammation. When asbestos fibers enter the skin, they can activate immune cells and inflammatory responses, causing skin inflammation. Itching is a typical symptom of skin inflammation. When the skin is exposed to inflammation, chemical changes occur in the body, including the release of tissue mediators and cytokines, which stimulate nerve endings and cause itching.

To relieve itching caused by asbestos exposure, it is important to promptly remove the asbestos fibers from the skin. Using a damp cloth or tissue to gently wipe the skin's surface can effectively remove asbestos fibers. Additionally, maintaining skin cleanliness and promptly removing dirt are crucial in preventing the accumulation of asbestos fibers and reducing skin contact.

In conclusion, the main reasons why asbestos causes itching are its fiber's irritant properties, allergic reactions, and skin inflammation. Understanding the potential hazards of asbestos and taking appropriate preventive and removal measures can help avoid contact with the skin and reduce the occurrence of itching and discomfort.