近日，一则‘女子受冷后手指变惨白’的视频引发关注。对此，医生解释，这种现象很可能是雷诺现象（Raynaud’s phenomenon）的表现。雷诺现象是一种因寒冷或情绪紧张导致小动脉痉挛，使手指或脚趾血流减少的疾病。典型症状为手指在受冷后迅速变白、发紫，随后可能转红并伴有刺痛、麻木或灼热感。该病多见于年轻女性，尤其在寒冷季节高发。轻度雷诺现象通常无需特殊治疗，注意保暖、避免寒冷刺激即可缓解。但若频繁发作、持续时间长，或伴随皮肤溃疡、关节疼痛等症状，则需警惕继发性雷诺现象，可能与自身免疫性疾病（如系统性红斑狼疮、硬皮病等）有关，建议及时就医检查。医生提醒，日常生活中应加强手部保暖，冬季外出戴手套，避免直接接触冷水或冷冻物品。同时，保持良好情绪、戒烟限酒也有助于改善微循环，减少发作频率。一旦出现异常，应及时咨询风湿免疫科或血管专科医生，明确病因并接受规范治疗。
Recently, a video showing a woman whose fingers turned pale white after cold exposure has drawn public attention. Doctors explain that this is likely a manifestation of Raynaud’s phenomenon—a condition where small arteries spasm in response to cold or emotional stress, reducing blood flow to the fingers or toes. Typical symptoms include fingers turning white, then blue upon cold exposure, followed by redness accompanied by tingling, numbness, or a burning sensation.Raynaud’s phenomenon is more common in young women and occurs more frequently during colder months. Mild cases often require no specific treatment—simply staying warm and avoiding cold triggers can provide relief. However, if episodes become frequent, prolonged, or are associated with skin ulcers or joint pain, it may indicate secondary Raynaud’s, potentially linked to autoimmune diseases such as systemic lupus erythematosus or scleroderma. In such cases, prompt medical evaluation is recommended.Doctors advise wearing gloves in winter, avoiding direct contact with cold water or frozen objects, and maintaining emotional well-being. Quitting smoking and limiting alcohol intake can also improve microcirculation and reduce flare-ups. Anyone experiencing these symptoms should consult a rheumatologist or vascular specialist for proper diagnosis and management.
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