很多人小时候都听过一句老话：‘白头发拔一根，会长出十根’。这句话常被长辈用来劝阻孩子不要随意拔白发。但这种说法真的有科学依据吗？其实，这是一种流传已久的误解。从医学角度来看，毛囊是独立的结构，每个毛囊只负责生长一根头发。拔掉一根白发，并不会刺激周围毛囊变白，也不会导致同一毛囊长出更多头发。因此，‘拔一根长十根’的说法在生理上是不成立的。不过，频繁拔白发确实可能带来其他问题。例如，反复拉扯可能导致毛囊受损，甚至引发毛囊炎或局部脱发。此外，白发的出现通常与遗传、年龄增长、压力、营养缺乏（如维生素B12、铁、铜等）或某些疾病有关。如果突然大量出现白发，建议及时就医排查原因。与其拔除白发，不如从根源入手：保持健康作息、均衡饮食、减轻压力，有助于延缓白发的产生。若实在介意外观，可选择安全的染发方式，但应避免过度使用化学产品。总之，‘拔一根长十根’只是民间传言，不必当真，但也不建议随意拔白发，以免损伤头皮健康。
Many people have heard the old saying since childhood: ‘If you pluck one gray hair, ten will grow back.’ Elders often use this phrase to discourage children from pulling out their gray hairs. But is there any scientific truth to it? In fact, this is a long-standing myth.From a medical perspective, each hair follicle is an independent structure that produces only one hair strand. Plucking a single gray hair does not stimulate neighboring follicles to turn gray, nor does it cause the same follicle to grow multiple hairs. Therefore, the idea that ‘one plucked hair leads to ten new ones’ has no basis in human physiology.However, frequently plucking gray hairs can still cause problems. Repeated pulling may damage hair follicles, potentially leading to folliculitis or localized hair loss. Moreover, graying is typically influenced by genetics, aging, stress, nutritional deficiencies (such as vitamin B12, iron, or copper), or certain medical conditions. If you notice a sudden increase in gray hairs, it’s advisable to consult a healthcare professional.Instead of plucking, it’s better to address the root causes: maintain a healthy lifestyle, eat a balanced diet, and manage stress—all of which may help delay the onset of gray hair. If appearance is a concern, opt for safe hair dye methods, but avoid overusing harsh chemicals.In short, the ‘one becomes ten’ claim is just a folk tale—no need to believe it—but it’s still wise to avoid plucking gray hairs to protect your scalp health.
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