Cupping Therapy: The Marks, the Evidence and the Safety Rules
拔罐：罐印、证据与安全须知 · 更新 2026-10-18
教育性科普：不诊断、不开方、不荐药、不承诺疗效；何时该看医生见页面下方。
What this means in TCM 中医怎么看
Cupping went mainstream when athletes showed up to the Olympics with circular purple marks. Underneath the fame is a simple mechanism: a cup, a vacuum, and suction on the skin. Here is what it does, what the evidence supports, and what to be careful about.
当运动员带着一圈圈紫色圆印出现在奥运赛场，拔罐就走进了大众视野。名声之下机制其实很简单：罐子、负压、吸附皮肤。本页讲它做什么、证据支持什么、以及要注意什么。
Cupping places a cup on the skin and creates suction — traditionally by a flame that consumes oxygen, or by a hand pump. The suction lifts skin and superficial tissue, drawing blood to the area. TCM reads it as moving stagnation and cold in the channels; physically it is a negative-pressure stimulus to skin, fascia and muscle.
拔罐是把罐具吸附在皮肤上制造负压：传统用火消耗氧气，现代多用抽气枪。负压把皮肤与浅层组织提起、使局部充血。中医解读为疏泄经络瘀滞与寒凝；从物理上看，是对皮肤、筋膜与肌肉的负压刺激。
How people approach it today 今天人们通常怎么做
- Dry cupping (no blood) is the common modern form. Cups are left in place for several minutes or slid along oiled skin.
干罐（不出血）是现代常见形式：留罐数分钟，或在涂油的皮肤上走罐。
- Wet cupping adds small superficial incisions after suction to let a little blood out. It is a regulated procedure in many countries and must be done with sterile, single-use equipment.
湿罐在负压后加浅表小切口放出少量血，在许多国家属受管制操作，必须用无菌一次性器具。
- Sessions are usually 5–15 minutes. Circular marks are common and fade over about three to ten days.
一次通常 5–15 分钟。圆形罐印常见，约三到十天消退。
What the evidence says 现代证据怎么说
Reviews on cupping for chronic neck and back pain report improvements, but the trials are small and blinding is difficult — so expectations may account for part of the effect. It is generally positioned as an add-on to standard care, not a replacement. There is no credible evidence that cupping removes "toxins".
关于拔罐用于慢性颈肩腰背痛的综述报告了改善，但试验样本小、难以设盲——因此预期效应可能占一部分。它通常被定位为标准照护的补充，而非替代。没有任何可信证据表明拔罐能「排出毒素」。
Safety — and when to see a clinician 安全与何时就医：
- Avoid cupping on broken skin, over veins, on the abdomen or lower back in pregnancy, and on anyone with a bleeding disorder or on blood thinners.
破损皮肤、静脉走行处、孕期腹部与腰骶部，以及有出血性疾病或服用抗凝药者应避免。
- Wet cupping carries infection risk if equipment is not sterile — insist on single-use, sealed equipment.
湿罐若器具不无菌有感染风险——务必要求使用密封一次性器具。
- Blistering, burns (from flame cupping), severe pain, dizziness or fainting mean stop immediately and seek care.
出现水疱、烫伤（火罐）、剧痛、头晕或晕厥，立即停止并就医。
- Do not use cupping to "treat" an undiagnosed lump, infection or acute injury.
Common questions 常见问题
What do the round marks from cupping mean?
They are suction-induced bruising of the skin and superficial tissue. They are not toxins being pulled out, and they are not a sign of how "sick" you were. Most fade within a week or two.
拔罐的罐印颜色越深越「毒」吗?
不是。罐印是负压造成的皮下出血，深浅与个人毛细血管脆性、力度、时间有关，不代表「毒素」多少，也不是病情轻重的指标。
Is cupping safe?
For most healthy adults, dry cupping by a trained practitioner carries low risk of serious harm. The main risks are burns, blisters and infection — which is why sterile technique and avoiding flame or wet cupping when contraindicated matters.
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