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Eli5: Why is vomiting a symptom of severe dehydration?

r/

Got sick after being seriously dehydrated. Seems crazy that I desperately needed every drop of fluid available. Why throw it up?

Comments

  1. theseangt Avatar
    theseangt

    It’s not. You get dehydrated from whatever is causing the vomiting.

  2. Atmosck Avatar
    Atmosck

    You have cause and effect flipped. Vomiting and diarrhea cause dehydration. That’s one of the mechanisms by which bacterial infections can be lethal.