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Abdominal Evisceration in TCCC: When to Reduce, How to Cover

By Chester "Chet" Shermer, MD, FACEP · 2026-11-05

About the author: Dr. Chester Shermer, MD, FACEP

An artillery fragment strikes a rifleman in the left lower abdomen as his squad crosses an open field. By the time he reaches the casualty collection point, a teammate has pressed a dry field dressing over the wound and is pushing down to get the loops back inside. The medic lifts the dressing. Two loops of small bowel sit outside a 5 cm defect, a thin line of brown fluid tracks from one of them, and the cut edge of the abdominal wall is oozing. The rifleman is talking, with a fast radial pulse.

The pushing stops now. Leakage rules out any reduction attempt, so this bowel gets rinsed, covered with a moist or water-impermeable barrier, and moved toward a surgeon, with the casualty taking nothing by mouth and getting an injectable antibiotic.

What the 2026 TCCC Guidelines say

Abdominal evisceration sits in Tactical Field Care under "Inspect and dress known wounds" in the 1 May 2026 TCCC Guidelines [1]. The steps, in the guideline's order:

These steps came from TCCC Change 20-02, the first time the guidelines addressed evisceration at all [2]. The change paper adds points the 2026 text leaves out, starting with this one: if there is no evidence of spinal cord injury, let the casualty take the position of most comfort [2]. The rest are below.

What these wounds are and what kills the casualty

Change 20-02 cites historical data that about 20% of hospitalized combat casualties have an abdominal injury, and that evisceration complicates as many as one-third of battle-related abdominal wounds [2]. The authors estimate that about 7% of modern battlefield injuries present with an evisceration [2]. From January 2002 to May 2016, Role 2 and Role 3 facilities recorded 26,548 abdominal surgical procedures, and bowel procedures were the largest group at both levels [3].

The bowel outside the wall is rarely what kills. The change paper states that death in these casualties usually comes from associated injuries, such as solid organ or vascular injury, and estimates that about two-thirds of deaths from war-related evisceration are due to hemorrhage [2]. It also estimates that 15% to 25% have an associated chest injury [2]. A visible bleeding source in the eviscerated contents can take a hemostatic dressing. The defect does not mean you can find or control intra-abdominal or pelvic bleeding through it [2]. Recheck the chest and the vital signs; do not let the most visible wound set the order of care.

The evidence behind the dressing steps is thin. The CoTCCC panel found no definitive study or clinical trial of prehospital evisceration care, so the steps rest on surgical experience and expert consensus [2]. The aim of the cover is to reduce contamination, drying of the bowel, and heat and vapor loss from the exposed organs [2].

One attempt, and when not to make it

The reduction rule has two gates and one clock. Do not try if:

If nothing leaks and hemorrhage is visibly controlled, one brief attempt (under 60 seconds) may be made [1]. If the contents do not go back easily, stop [2]. The change paper limits the attempt to wounds without substantial loss of the abdominal wall [2]. After a successful reduction, Change 20-02 told providers to bring the skin together, preferably with an adhesive dressing such as a chest seal [2]. The 1 May 2026 text does not restate that step [1].

The change paper also lists prolonged casualty care considerations [2]:

Drugs when the casualty takes nothing by mouth

The 2026 antibiotic section recommends antibiotics for all open combat wounds [1]. TCCC Change 25-1 replaced moxifloxacin and ertapenem with cefadroxil 1 g by mouth (preferred oral drug) or cephalexin, and ceftriaxone 2 g IV, IO or IM for the casualty unable to take oral drugs, which the guideline explains as shock or unconsciousness [1, 4]. Change 20-02 had named parenteral ertapenem as the preferred drug for evisceration [2]. That choice is superseded. The evisceration casualty is NPO, so ceftriaxone is the drug that fits.

The Change 25-1 panel recognized that the new drugs have a narrower spectrum [4]. It asked for that to be considered in Prolonged Casualty Care guidance and for surveillance for unanticipated increases in specific injury patterns, abdominal injuries among them [4]. Write the drug, dose, route and time on the DD Form 1380.

The NPO line also touches pain control. The Combat Wound Medication Pack is oral: acetaminophen, meloxicam and suzetrigine [1]. For the casualty who cannot stay in the fight, TCCC medical personnel have ketamine 100 mg IM, 50 mg intranasal, or 25 mg IV or IO over 1 minute, or esketamine 14 or 28 mg intranasal x1. A line after that list reads "Repeat doses q30 min prn" [1]. The same section directs a non-mission-capable casualty to take the pack if not already taken, and the 2026 text does not say how that fits with the NPO line for evisceration [1]. The non-oral options avoid the question. Ondansetron 4 mg is listed as ODT, IV, IO or IM every 8 hours as needed for nausea or vomiting [1]. Our review of the 2026 analgesia update covers the dosing logic.

Get this casualty to a surgeon

In a prospective civilian series from Cook County Hospital, 81 patients presented with evisceration after an abdominal stab wound [5]. Of these, 63 (78%) had an intra-abdominal injury that required repair [5]. The rate was similar whether omentum or bowel had eviscerated (77% vs 80%), and whether or not there was another reason to operate (76% vs 84%) [5]. Those were knife wounds in a city trauma center, so the exact rate does not transfer to fragment and gunshot wounds. The direction of the finding is what matters for the evacuation decision.

A 2026 military review of selective non-operative management (observing selected abdominal wounds instead of operating) reached the same place from the other side [6]. It found that such management may be appropriate only in a highly selected group in favorable circumstances: hemodynamically stable, with no peritonitis, evisceration, bleeding or hollow-viscus injury, and no significant head, spinal cord or other major injury [6]. An evisceration takes the casualty out of that group.

Put the evisceration, the leakage finding, and the antibiotic time in the MEDEVAC request and the handoff. Wrap the casualty for heat loss over the bowel dressing. The en route care packaging review covers the rest of the package.

Key Takeaways

FAQ

Should you push eviscerated bowel back into the abdomen?

Only under narrow conditions. The 2026 TCCC Guidelines rule out reduction when gastric or intestinal fluid or stool is leaking, or when there is active bleeding [1]. If nothing leaks and hemorrhage is visibly controlled, one brief attempt under 60 seconds may be made, and the contents are never forced [1]. If they do not go back easily, cover them where they lie [2].

What do you cover an abdominal evisceration with?

Rinse with clean fluid, warm if possible, then cover with a moist sterile dressing or a sterile water-impermeable covering [1]. If the bowel stays out, use a transparent non-adhesive cover such as a bowel bag, IV bag or clear food wrap, held down with Ioban or a chest seal [1]. The clear cover lets you recheck for bleeding without lifting it.

What antibiotic does TCCC recommend for an abdominal evisceration?

The 2026 guidelines recommend antibiotics for all open combat wounds [1]. The evisceration casualty is NPO, and ceftriaxone 2 g IV, IO or IM is the listed drug for a casualty unable to take oral medicines, which the guideline explains as shock or unconsciousness [1]. Ertapenem, named in the 2020 evisceration change, was replaced under TCCC Change 25-1 [2, 4].

Dr. Chet's Take

I have worked as an emergency physician for more than 25 years at a Level I academic trauma center, and I am a HEMS and critical care transport medical director. An evisceration is the loudest wound on a casualty and usually not the one that kills him. This article gets the order right: bleeding, rinse, cover, decide, move. The argument holds. The problem it describes is discipline. Most medics know not to stuff bowel back into a belly. The teammate in the opening scene pushed anyway, because the wound looked wrong and pushing felt like doing something. The fix is a rule simple enough to survive stress, and the best feature of the 2026 rule is that it fits in one breath.

That being said, the reduction step is where I would slow people down. The honest answer is that the 60-second limit is a judgment call by experienced surgeons, and I would teach it as a ceiling, not a target. The guideline permits an attempt; it does not require one. When a surgeon is close, a well-covered bowel loses little by staying out. When evacuation is delayed and the cover has to last for hours, the attempt makes more sense, which is where the change paper's prolonged care notes point. There is a second point the article does not make. Gas expands as cabin pressure falls with altitude, and bowel holds gas. A cover that fits at the casualty collection point can be tight after the climb. Whoever rides with this casualty checks the dressing and the bowel color once the aircraft levels off. That is when the clear cover earns its keep.

If you are the medic on the ground, check your aid bag tonight for something clear and water-impermeable that can cover a hand-sized pile of bowel: a bowel bag, an empty IV bag or a roll of clear food wrap, plus an adhesive dressing to hold it. Teach your Combat Lifesavers the two gates, leaking and bleeding, in one sentence. If you are a medical officer, build one evisceration into your next training lane and run it twice: once with clean bowel and controlled bleeding, once with leakage. Grade the second run on whether anyone tries to push. Grade both on whether the antibiotic went in by injection and whether its time made it onto the card. What you hand the surgeon is a clean, moist, covered bowel and a card that tells the truth.

— Chester Shermer, MD, FACEP | Emergency Medicine, 25+ Years Clinical Experience | State Surgeon

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Relevant Reading on Global MedOps Command:

How to Avoid Becoming an AI Casualty — Dr. Shermer's guide to navigating AI tools in clinical and operational settings without compromising judgment or patient outcomes.

Emergency Department Efficiency Playbook — Practical systems for throughput, triage optimization, and operational efficiency.

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References

  1. Committee on Tactical Combat Casualty Care. Tactical Combat Casualty Care Guidelines, 1 May 2026. Tactical Field Care: Inspect and Dress Known Wounds (Abdominal Evisceration), Analgesia, Antibiotics. Deployed Medicine. deployedmedicine.com · NAEMT copy (PDF)
  2. Riesberg JC, Gurney JM, Morgan M, et al. The Management of Abdominal Evisceration in Tactical Combat Casualty Care: TCCC Guideline Change 20-02. J Spec Oper Med. 2021;21(4):138-142. doi:10.55460/9U6S-1K7M · PubMed 34969144
  3. Stockinger ZT, Turner CA, Gurney JM. Abdominal trauma surgery during recent US combat operations from 2002 to 2016. J Trauma Acute Care Surg. 2018;85(1S Suppl 2):S122-S128. PubMed 29370066
  4. Wisniewski P, Becker YA, Larson DT, et al. Antibiotics in Tactical Combat Casualty Care 2025: TCCC Change 25-1. J Spec Oper Med. 2025;25(4):85-93. doi:10.55460/SW7X-X8ZP · PubMed 41474877
  5. Nagy K, Roberts R, Joseph K, et al. Evisceration after abdominal stab wounds: is laparotomy required? J Trauma. 1999;47(4):622-626. doi:10.1097/00005373-199910000-00002 · PubMed 10528593
  6. McKnight G, Spreadborough P, Sharrock A, et al. Selective non-operative management for abdominal trauma in the deployed military setting: a review of evidence and considerations for large-scale combat operations (LSCO). BMJ Mil Health. Published online 7 July 2026. PubMed 42413996

Related simulation training: EMS-MedSim for civilian prehospital trauma care · Books by Dr. Shermer


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