13-040 · EVIDENCE B · SOURCE-SENSITIVE

Knives, rebar, glass piercing the body – apply pressure around the foreign object to stop bleeding; do not pull it out

刀、钢筋、玻璃扎进身体,压住异物周围止血,不要把它拔出来

Source cost

No cost involved. The hard part is resisting the instinct to “pull it out” and instead staying with the injured person until help arrives.

Source return

Pulling out the object can cause severe bleeding and makes it harder for doctors to assess the extent of the injury. The correct approach is to call 120, then use your hand or a dressing to apply firm pressure around the object to control bleeding and keep it stable so it doesn’t move. If internal organs are visible through an abdominal wound, do not push them back in; simply cover them with a clean, moist dressing. For chest wounds where air bubbles are escaping, do not seal them with plastic wrap – doing so can cause the lung to collapse.

Evidence grade

B

THE LOW-ROI DETOURSatire, not advice

Move “Knives, rebar, glass piercing the body – apply pressure around the foreign object to stop bleeding; do not pull it out” to Future Me's calendar

The excuse

If I do not open the notes, no new task has technically appeared.

What feels good now

Today I keep a few minutes, a bit of persistence and avoid interrupting my default routine.

What the source says

The source summarizes the return this way: “Pulling out the object can cause severe bleeding and makes it harder for doctors to assess the extent of the injury. The correct approach is to call 120, then use your hand or a dressing to apply firm pressure around the object to control bleeding and keep it stable so it doesn’t move. If internal organs are visible through an abdominal wound, do not push them back in; simply cover them with a clean, moist dressing. For chest wounds where air bubbles are escaping, do not seal them with plastic wrap – doing so can cause the lung to collapse.” Evidence grade B. The original states the population, caveats, and sources; this is not a personal forecast.

THE ENGLISH EDITION

Original recommendation and evidence

Source commit a994b6a0c905

40. Knives, rebar, glass piercing the body – apply pressure around the foreign object to stop bleeding; do not pull it out

Cost: No cost involved. The hard part is resisting the instinct to “pull it out” and instead staying with the injured person until help arrives.

In plain terms: Pulling out the object can cause severe bleeding and makes it harder for doctors to assess the extent of the injury. The correct approach is to call 120, then use your hand or a dressing to apply firm pressure around the object to control bleeding and keep it stable so it doesn’t move. If internal organs are visible through an abdominal wound, do not push them back in; simply cover them with a clean, moist dressing. For chest wounds where air bubbles are escaping, do not seal them with plastic wrap – doing so can cause the lung to collapse.

Benefit: The 2025 International First Aid Guidelines from the International Federation of Red Cross and Red Crescent Societies state: “First aiders should apply pressure around any foreign object (such as a knife) that has penetrated the body and keep it stable; do not remove it.” “Never pull any object out of abdominal or chest wounds – doing so can cause severe bleeding and makes it harder to assess the injury.” “Foreign objects embedded in the body should be kept stable; if they move with the pulse, simply hold them gently in place.” “First aiders must not push protruding organs back into the body.” For open chest wounds with active bleeding, “it is acceptable to leave them uncovered, as sealing them may trap air in the chest cavity and cause partial or total lung collapse (pneumothorax).” All penetrating abdominal or chest injuries require immediate emergency care.

Evidence grade: B

Sources: International Federation of Red Cross and Red Crescent Societies (2025). International First Aid, Resuscitation and Education Guidelines 2025, pp. 256–257, 267–268. <https://www.ifrc.org/sites/default/files/2026-03/IFRC%20International%20First%20Aid,%20Resuscitation%20and%20Education%20Guidelines%202025.pdf>

Notes: This grade is assigned because these actions are widely accepted in official guidelines; however, no randomized trials exist, and it would be unethical to randomly assign patients to “remove” versus “not remove” such objects. The sole exception is when a foreign object blocks the airway and prevents breathing. In such cases, go directly to the emergency triage desk at the hospital and state “penetrating injury.” This falls under the highest priority category – do not wait in line at the registration desk (see Section 24, Item 8). If a penetrating injury occurs, call 120; the ambulance will alert the hospital in advance. For techniques on controlling severe bleeding and applying tourniquets, see Section 12.

Read the complete Chinese source and notes

40. 刀、钢筋、玻璃扎进身体,压住异物周围止血,不要把它拔出来

成本: 不花钱。难的是忍住「先拔出来」的本能,守着人等救护车。

说人话: 拔出来可能造成大出血,也会让医生更难判断伤了多深。做法是:打 120,用手或者敷料压住异物周围止血,把异物垫稳别让它晃。肚子上的伤口有内脏露出来,不要往回塞,盖一块干净的湿敷料。胸口的伤口在冒泡的,别用塑料布封死,封死可能把肺压瘪。

收益: 国际红十字与红新月会联合会 2025 年国际急救指南:「急救的人应当压住扎进身体的异物(比如刀)周围,把异物稳住,不要把它拔出来」。「不要从腹部或胸部的伤口里拔出任何扎入的异物,拔出来可能造成大出血,也会让医生更难判断伤得有多重」。「扎在身体里的异物应当稳住;异物随脉搏跳动的,就让它跳,松松地稳住即可」。「急救的人不应把露出来的内脏塞回体内」。没有在往外涌血的开放性胸壁伤口「可以敞着、不加敷料,因为把伤口封死可能让空气积在胸腔里,使肺部分或完全塌陷(气胸)」。所有穿透性胸腹部伤口都应立即呼叫急救

证据等级: B

来源: International Federation of Red Cross and Red Crescent Societies (2025). International First Aid, Resuscitation and Education Guidelines 2025,第 256–257、267–268 页. <https://www.ifrc.org/sites/default/files/2026-03/IFRC%20International%20First%20Aid,%20Resuscitation%20and%20Education%20Guidelines%202025.pdf>

备注: 定 B 是因为这是指南里的公认做法,没有随机试验,总不能把伤者分成「拔」和「不拔」两组来试。唯一的例外是异物堵住气道、人喘不上气。到了医院直接找急诊门口那张分轻重缓急的台子(预检分诊台),报「穿透伤」。这属于要立刻进抢救室的那一级,不要去挂号窗口排队(见第 24 节第 7 条)。真扎穿了就打 120,救护车会提前通知医院准备接诊。大出血怎么压、怎么上止血带见第 12 条。

Author's scope notes: 定 B 是因为这是指南里的公认做法,没有随机试验,总不能把伤者分成「拔」和「不拔」两组来试。唯一的例外是异物堵住气道、人喘不上气。到了医院直接找急诊门口那张分轻重缓急的台子(预检分诊台),报「穿透伤」。这属于要立刻进抢救室的那一级,不要去挂号窗口排队(见第 24 节第 7 条)。真扎穿了就打 120,救护车会提前通知医院准备接诊。大出血怎么压、怎么上止血带见第 12 条。

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Original content by eternity4719 under CC BY 4.0. English translation is credited in the source notes. HowToLiveWorse adds a clearly labeled satirical response.

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