关于皮肤癌的五大误区

One hand squirts an orange bottle of sunscreen into another hand. In the background, the sky is blue and sunny.

Key takeaways:

  • There are several myths that exist regarding skin cancer that are not based in science.
  • Sun exposure and tanning beds can both harm your skin and increase your skin cancer risk.
  • The benefits of using sunscreen outweigh any risks, and the FDA regulates sunscreens to ensure they meet necessary requirements to be deemed safe and effective for use.

五月是 皮肤癌宣传月, and it’s the perfect time to separate fact from fiction so you have the knowledge you need to protect your skin. Here are five common myths about skin cancer—and the facts to debunk them.

误区 #1:晒太阳是给身体提供维生素 D 的唯一方法。

We all need Vitamin D to absorb calcium and protect our bones from developing bone diseases like osteoporosis; it’s also essential for strong immune systems and brain function. The sun is one way we get vitamin D. However, the right diet or supplements can also provide beneficial vitamin D. Plus, numerous studies show you can still receive vitamin D benefits from the sun while wearing sunscreen. So, there’s no need to harm your skin—you can still get that vitamin D while staying skin healthy!

误区 #2:晒黑可以提供保护性基底晒黑,防止晒伤。

There is no such thing as a safe tan—in fact, a tan is evidence of the sun damaging your skin. If you use a tanning bed or tan outside to “create a base,” you are still harming your skin! If you’d like a tanned look, try a spray tan or self-tanner instead.

另请阅读 | 日光浴床正在卷土重来。以下是为什么这是一件坏事。

Myth #3: If you have dark skin, you don’t need to wear sunscreen—your melanin is a natural sunscreen!

皮肤较黑的人皮肤、头发和眼睛中产生保护性色素沉着的物质(称为黑色素)含量较高——而且黑色素越多确实能提供一定的防晒保护。但是 任何人,无论肤色如何,都可能患上皮肤癌。 无论肤色如何,人们都应使用防晒霜、穿防护服或寻找阴凉处来阻挡有害的紫外线 (UV)。

误区 #4:阴天不需要涂防晒霜。

即使在阴天,您也可能被晒伤——这是因为 80% 的太阳紫外线可以穿过云层。您应该始终使用 SPF 30 或更高、同时具有紫外线 A (UVA) 和紫外线 B (UVB) 防护(也称为“广谱”)的防晒霜。使用广谱防晒霜很重要,因为虽然 UVB 射线主要导致晒伤,但 UVA 射线也有害。过度暴露于 UVA 或 UVB 可能会导致皮肤癌。

误区 #5:使用防晒霜意味着要将有害化学物质涂抹在身体上。

使用防晒霜的好处大于风险,美国食品药品管理局 (FDA) 对防晒霜进行监管,以确保它们符合必要的要求,被视为安全有效。安全有效的防晒霜价格实惠,保护您的皮肤的效果与 SPF 等级相同的豪华版一样好。

另请阅读 | How to read sunscreen labels

化学防晒霜 被皮肤吸收,并在紫外线造成伤害之前改变其化学结构。 矿物(或物理)防晒霜另一方面,它位于皮肤表层,形成一道屏障,在射线穿透之前阻挡和散射射线。

还有一些防晒霜适合皮肤敏感的人,例如标有“皮肤科医生推荐”或“婴儿专用”的防晒霜。还有纯素、有机、珊瑚礁友好型和无残忍型防晒霜可供选择。珊瑚礁友好型防晒霜是矿物质防晒霜,其成分对珊瑚礁的危害较小。如果您担心防晒霜中的化学物质,请向医疗保健提供者或皮肤科医生寻求建议。 了解有关如何购买防晒霜的更多信息。

现在你已经了解了这些误区,你就可以有效地保护自己和你的皮肤了。查看 Preventcancer.org/skin 了解更多信息。

另请阅读 | My makeup contains SPF. Do I still need to wear sunscreen?