the.com/distension

Bloating's fancier cousin — the swelling that makes pants lie about your lunch.

means The act or state of being stretched or swollen outward by pressure from within, like a balloon, belly, or bladder filling past its resting size.

from From Latin distendere — 'dis-' (apart) plus 'tendere' (to stretch), the same stretching root behind 'tension,' 'tendon,' and 'extend.' So distension is literally a stretching apart from the inside, pressure pushing outward until the surface gives.

not fat
gas, fluid, or air, not tissue growth
common cause
swallowed air or slow digestion, not failure
body-wide
can happen to veins, organs, even the abdomen
usually temporary
resolves once pressure or gas escapes
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