After returning to the Mars station in The Martian, Mark Watney self-operates his wound. How realistic is that self-treatment?

  • 3
    You might want to describe the operation and some of the surrounding circumstances, and provide images (if possible) Commented Nov 1, 2015 at 12:29
  • 2
    Consider this self-appendectomy -- warning: black&white pics of the operation -- Watney's doesn't seem so extraordinary.
    – BCdotWEB
    Commented Feb 22, 2016 at 15:11
  • The story is set about 25 years ahead, so a certain amount of advanced tech has to be accepted by the audience. Still, I found Mark's self-surgery to be quite believable. Remember the woman at the South Pole years back, who had to give herself a biopsy so that a doctor thousands of miles away could diagnose cancer?
    – Sibyl
    Commented Jul 1, 2017 at 21:36

2 Answers 2


Here is the basic sequence of events, along with screen shots. Please note that some of these are PG-13 graphic, but relevant to the question. If screen shots of realistic injuries are not your thing, please look away.

  1. Mark enters the HAB with a piece of metal sticking out of his abdomen. It did not skewer him all the way through: it appears to have entered an inch or two and to have missed organs that might require "real" surgery to repair.

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  2. He removes the metal piece.

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  3. He removes his suit, exposing bare skin.

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  4. He cleans around the wound.

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  5. He appears to apply topical anesthetic in a circle around the wound (note the bloody circles around the wound from the auto-injector he appears to be applying).

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  6. He uses surgical tongs to pull out a metal fragment left behind.

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  7. Finally, he staples the wound shut.

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He also takes painkillers afterward.

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When discussing the realism there are a few things to keep in mind:

  • Mark Watney is a botanist, not a physician. He appears to have received some basic medical training. I would expect on a journey between planets that all astronauts would receive training in a lot of topics where things you take for granted will no longer be available (cannot call an ambulance, for example).

  • He had to make do with what the situation gave him: his training, available supplies, etc.

Based on what we can assume about Mark's medical training and what tools he used, it appears realistic to me.

  • The basic idea of "remove obstruction, clean, anesthesia, remove foreign entity, staple shut" is the same general sequence of first aid. Certain types of injuries (e.g. eye wound) might be different, but that is a basic, common sense sequence of events that mirrors my own first aid training that I received in the military.

  • The tools he used are basic medical tools that I would expect such an expedition to have available. He did not make use of e.g. an MRI machine which I would not expect to be present.

  • Simple operations on oneself can be difficult due to pain, emotion, etc. but Mark is a trained astronaut: remember at the end when he lectures a class of aspiring astronauts and says, paraphrasing, "you solve one problem at a time, these problems may be very difficult." He did what he had to do (with drugs, of course) because there is nobody else to help him. He is physically and mentally fit and was able to suck it up and put up with the pain because he knew if he did not, he would die.

  • Visually, it appears realistic. The abdomen has a lot of blood because the blood vessels need to pick up nutrients from the stomach and intestines. Having a bloody wound in that location is very realistic. Aside from that, I was actually quite impressed: that scene did not appear to use much computer graphics and it looked pretty good (gruesome).

All screen shots are Copyright (C) 2015 20th Century Fox, used here under the Fair Use provision of U.S. Copyright law.

  • 1
    "suck it up and put up with the pain" - in addition, in the book he did, several times, admit to 'crying like a girl' (his words). Obviously they removed that from the film ! I suspect for this scene on film they made him a little tougher (less realistic).
    – Pat Dobson
    Commented Nov 2, 2015 at 13:08
  • @PatDobson I don't remember that from the book (not saying Mark didn't cry), but I do remember he never backed down from a task that had to be done.
    – user9311
    Commented Nov 2, 2015 at 14:19
  • No, he never did back down but (as I recall - for example) he switched the com off when he was being rescued so they didn't hear him - I'll have to check the book...
    – Pat Dobson
    Commented Nov 2, 2015 at 16:21
  • 1
    In this interview with Adam Savage, Astronaut Chris Hadfield, and Andy Weir, Astronaut Chris Hadfield said that they do undergo extensive medical training for just this type of emergency, including EMT training, cadaver work, assisting a surgeon in an Operating Room, and working in an ER where they do staple real patients. That said, Mark was very lucky that he didn't perforate a bowel or intestine, which would have required much more invasive surgery that would have been difficult or impossible to do on yourself.
    – Johnny
    Commented Jan 31, 2016 at 7:40
  • Since the Blu-ray was released, I was able to add screen shots. Please be aware that some of them are graphic at the PG-13 level, consistent with the film rating and the subject matter of the question.
    – user9311
    Commented Feb 22, 2016 at 6:37

Stapling a dirty deep wound like that is a death sentence. That would probably require wet packing to reduce infection risk, along with antibiotics.

  • 1
    I thought something similar, but then realized: It's Mars. Everything exposed to the outside atmosphere is probably completely sterilized Commented Mar 3, 2021 at 7:10
  • Maybe, but even if there's no Mars bacteria or virus, there's still the bacteria from his skin, clothes, and suit. If Im there, Im doing a wet pack dressing.
    – Tim
    Commented Mar 4, 2021 at 20:01

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