Throat Ulcers: 7 Causes, Treatment & When to Worry

Throat Ulcers: 7 Causes, Treatment & When to Worry

A throat ulcer, or a throat canker sore, is a small, round sore that can cause pain and discomfort when swallowing or speaking. This type of ulcer may appear after ingesting acidic food but it can also be a sign of a weakened immune system.