How would i know if i sprained my ankle?

Ankle pain/swelling: Signs & symptoms of an ankle sprain include localized swelling and pain over the front of the ankle just in front of the bony prominence of the fibula. If the bone is the major focus of pain an x-ray is required to make sure you do not have a fracture. Most acute sprains make walking difficult and running impossible especially for the moderate to severe sprain. Side to side motion is also painful.

Ankle Sprain: In most cases people tend to use the terms "sprained" and "twisted" synonomously when describing ankle injuries. However, it is important to point out in most cases a sprain (ligament damage) usually comes from a twisting mechanism (also known as inversion or eversion) of the ankle. Pain, swelling and possible bruising are all signs of a sprain. Rest, ice, elevate, compression to help recover.

Usually an injury : Of some sort precedes it to actual do the damage, then one gets pain or swelling around the ankle ligaments.

Pain & swelling: A sprained ankle occurs when there is a stretch or tear of the tough bands of tissue (ligaments) which help hold your ankle bones together. Pain and swelling of the ankle indicates a possible sprain. However, you should be examined at a medical clinic because the severity of the sprain determines what type of treatment is indicated. I wish you well with your health!