As the title says, what is the difference between swollen and inflamed?
These words can escribe visible changes to the body:
This is the reason for the name: inflamed implies more heat.
By analogy the word swollen could describe a river carrying a greater flow of water.
Similarly, the word inflamed is often used to describe a situation of increased severity.
The meaning of inflamed is "became reddened, swollen, hot, and often painful, especially as a reaction to injury or infection."
Swollen means " became larger or rounder in size, typically as a result of an accumulation of fluid."