摘要：鼻屎并非是鼻子的排泄物，它的来源是鼻腔黏膜分泌的黏液，用来湿润鼻子，粘住灰尘以及细胞碎屑。用手指去抠鼻，会刺激到鼻腔黏膜，令其分泌更多黏液，造成恶性循环。

每个人在生活中都会有一些让自己“暗爽”的小癖好。殊不知，这些事情看起来很爽，但对身体的损伤却远超你想象。

经常用手指抠鼻

抠鼻这个动作，不但有实用价值，也有内涵意义，还可以做表情包。不过，无论从什么意义上考虑，都不建议你长期做这个动作。

鼻屎并非是鼻子的排泄物，它的来源是鼻腔黏膜分泌的黏液，用来湿润鼻子，粘住灰尘以及细胞碎屑。用手指去抠鼻，会刺激到鼻腔黏膜，令其分泌更多黏液，造成恶性循环。

Nose-picking — a universal gesture immortalized in emoji culture — poses greater health risks than most people realize. Contrary to popular belief, nasal mucus, commonly called "nose gold", isn't waste, but a protective secretion from mucosal membranes that traps airborne particles and moisturizes nasal passages.

同时，鼻内的毛细血管却异常丰富，稍有不慎就会出血。另外，人的指甲缝往往藏污纳垢，用它来抠鼻，其实是在输送细菌。

Aggressive digging irritates these delicate membranes, triggering excessive mucus production in a self-perpetuating cycle. The nose's dense capillary network bleeds easily from minor scrapes, while bacteria-laden fingernails transform this habit into germ warfare against your sinuses.

当然，还有一个危害，那就是，你的手指头远比鼻孔粗，常常探进去，日积月累，鼻孔可能会变大哦。

Bonus hazard: frequent finger insertion (wider than nostrils) may cause gradual nasal dilation over time.

如果实在想抠，最好轻柔一些，最好用柔软的棉签沾上干净的水滚动清洁。

撕嘴皮

这是许多人都有的“怪癖”。医学上把它称为“强迫性皮肤剥离症”。

其实，起嘴皮可能不只是因为喝水少或缺乏维生素，也可能是因为唇炎。撕掉这层嘴皮，并不能解决问题。

That habit of compulsively picking at lip skin — often dismissed as a quirky behavior — actually aligns with compulsive skin-picking disorders. Contrary to assumptions, flaky lips aren't always caused by dehydration or vitamin deficits; underlying issues like cheilitis (lip inflammation) may be the root cause.

平时若总是频繁撕掉它，还可能带来负面作用。嘴唇的皮肤很薄，也分布了很多毛细血管，用手撕扯很容易疼痛或流血，另外，嘴唇上的死皮其实相当于一道防护，反复扯掉这道防护、刺激嘴唇，就容易让细菌侵入，长此以往，可能会有口角炎。

正确的做法是，用热毛巾热敷几分钟，待死皮软化，再用柔软的刷子刷去死皮，涂上润唇膏进行保湿呵护。

For proper care: Apply warm compresses to soften dead skin, then gently exfoliate with a soft brush. Always follow with a nourishing lip balm to hydrate and protect — treating lips like the fragile, infection-prone organs they are.

指甲剪得光秃秃

把指甲剪到底，完美贴合趾头的曲线，不但看起来美观，也能拉大下一次剪指甲的间隔。但此举，对手指本身并不是什么好事。

人的手指和脚趾都包括了甲板与被甲板盖住的软组织，两者相互制衡，如果指甲剪得太过于深入，软组织就会毫无忌惮地生长，当指甲再长回来时，两者就会犯冲，挤在一起，从而形成嵌甲。两者相碰，必有一伤，足够坚硬的指甲会把甲沟扎破，当细菌侵入，红肿化脓，也就形成了甲沟炎。

Human fingers and toes maintain a delicate balance between the nail plate and the underlying soft tissue. Overly aggressive trimming disrupts this equilibrium — without the nail's restraint, the soft tissue expands unchecked.

When the nail regrows, the two structures collide, creating an ingrown nail. The hardened nail plate typically wins this battle, piercing the surrounding skin. Bacterial invasion then follows, sparking inflammation and pus formation—the telltale signs of paronychia (nail bed infection).

所以，剪指甲时最好不要剪太短，两侧不要太深，要保证指甲和软组织的覆盖。

经常掏耳朵

每当看到一大块耳屎被挖出来，别提有多爽了。不过，大多数人其实都不必掏耳朵。

耳屎有个学名，耵聍，它并不单纯是耳朵的排泄物，而是耳朵的保卫工，可以保护耳道，阻挡异物，也能维持酸碱平衡，不让细菌滋生。平时，它会随着人体的咀嚼、运动自然脱落。

如果长期过度掏耳，则会刺激分泌，让耵聍越来越多。不正确的掏耳姿势和力度，还有可能损伤耳道，甚至捅穿耳膜。

Earwax, medically termed cerumen, serves as a natural guardian of the ear canal — not mere waste. It traps foreign particles, maintains PH balance, and inhibits bacterial growth.

Frequent aggressive ear cleaning triggers overproduction, creating a paradoxical "more-you-dig-worse-it-gets" cycle. Improper tools or techniques risk scratching the ear canal or even puncturing the eardrum.

目前，市面上的采耳店对采耳工具的保管和消毒都并不到位，去了采耳店从而让耳朵染上真菌感染的新闻也比比皆是。所以，如果确有需求，最好去正规医院。

编辑：左卓

实习生：裴艺

来源：新浪财经