To Swell
To Expand, To Be Inflated, To Distend, To Bulge
intransitive verb, ichidan verb
ふくれる
膨れる （ふくれる、vi） To Swell, To Expand, To Be Inflated, To Distend, To Bulge
膨らむ （ふくらむ、vi） To Expand, To Swell, To Get Big, To Become Inflated
Yuri says 膨れる is used when something is Swollen.