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In that picture it mentions how triangle wounds are impossible to stitch up. If that is true how would one treat a triangle puncture wound on the human body?

  • 2
    +1 on the humor... In all seriousness, I do look forward to hearing the answer though.
    – L.B.
    Feb 23, 2017 at 13:31
  • 1
    @L.B. yeah same here
    – user8312
    Feb 23, 2017 at 15:12
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    I don't know what you're quoting or when it was written, but in 2017 it's entirely possible to close a triangular wound, or any other shape for that matter.
    – Carey Gregory
    Feb 23, 2017 at 19:46
  • @CareyGregory I am not asking if it can be done but how
    – user8312
    Feb 23, 2017 at 21:42
  • Related
    – Narusan
    Feb 5, 2018 at 20:08

2 Answers 2


A triangular wound can possibly be sutured, depending on many considerations regarding the wound including its type, condition, location, size, shape, depth, cleanliness vs presence of debris, mechanism of injury, the force of the injury, the age of the wound, tension on the wound, the patient’s medical history, species if the wound is a bite, etc...

In “stellate” wounds, tissue viability is a major consideration before proceeding. (Wound preparation is an extensive topic not covered here.) The triangular bits at the center of the wound are at risk of not being viable (or savable) tissue if there is inadequate circulation to that specific area. If the triangular tips are pink and the subcutaneous tissue appears to be intact and adequately supportive, then a “purse-string” suture can be considered for bringing those points together, followed by placement of ordinary straight suturing of the “arms” of the stellate wound. stellate wound with purse string suture(The above image is from this wound care slideshow at slideshare.net)

my drawing of a purse-string closed wound with suturing completed(My drawing of a purse-string-closed wound with further suturing of the branches of the wound completed.)

If the triangular tips are pale, grey or purple, or have no obvious subcutaneous support, they would be deemed non-viable and would therefore be removed from the wound, thus requiring a larger excisional solution. One possibility would be to cut an elliptical excision around the entire wound, which would then be closed by pulling the edges together with simple interrupted sutures. (This is similar to the excisional method used for biopsies or removal of cancerous cutaneal lesions.) my drawing of an elliptical excision and suturing (My drawing of an elliptical excision and suturing.)

Of course this entire explanation is a gross oversimplification of a process which actually requires extensive professional training. My reference for the above material is this excellent slide show summarizing the entire suturing process, paraphrased through the lens of my own experience.

  • 1
    This has the makings of a good answer but it has a couple of problems. Your first paragraphs make several assertions of fact with no supporting references. You need to provide references. And the first image isn't attributed. You need to credit the source. It's also not clear if the diagrams are your own work or you took them from another source. You need to credit sources if they're taken from someone else or state that they're your own.
    – Carey Gregory
    Feb 21, 2019 at 2:37
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    Also, although the disclaimer at the end isn't a violation of any rules, it's really not necessary. The site already makes it clear nothing here is to be taken as medical advice. You can safely delete that entire section.
    – Carey Gregory
    Feb 21, 2019 at 2:42
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    Thank you @CareyGregory for your advice and instruction. Please let me know if further changes are required. Happy to comply!
    – Laurent R.
    Feb 21, 2019 at 22:15
  • It is obvious that the clearly illogical part of this Poem which describes how a victim “bleeds out waiting on the police to arrive since triangular bayonet wounds are impossible to stitch up” is not necessarily a description of actual events nor a comment on how to respond to a severely wounded person in reality. However, in case anyone is confused, it bears emphasizing that it would not actually be OK to stand there and watch a severely wounded person exsanguinate; one actually should perform at least minimal first aid by applying pressure to the wound while professional help arrives.
    – Laurent R.
    Feb 21, 2019 at 22:44
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    Your edits are perfect. Thank you.
    – Carey Gregory
    Feb 21, 2019 at 23:12

Triangular blades were created for pretty much one reason, and one reason only. The triangular cross section made a stronger blade, ensuring more damage was done in a charge/stab versus a flat blade.

The triangular blade was introduced in the early 1700's, mostly due to strength reasons. A triangular blade is less likely to bend/break when stabbing in a charge, especially if you hit a piece of armor, another weapon or bone. The cross section is much stronger in a triangle versus a flat blade.

There is anecdotal evidence galore about the wound, and the wiki states that it is harder to heal, as the scar tissue filling in the wound tends to pull apart the rest of the wound as it heals. I can find several anecdotal references, but nothing concrete to confirm this. There is also anecdotal evidence that the Geneva Convention bans triangular blades, however the language only states "weapons that cause unneeded suffering" (paraphrased).

Pretty much the only reason for them was strength, and as other weapons became better, the bayonet went back to a single/double blade, as they are much more useful in that shape in non combat situations (Cutting ropes, food, straps, etc).


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