Visible Variations: Bruising, redness, or visible deformities across the elbow may be indications of acute injury or chronic ailments. Elbow bursitis also referred to as olecranon bursa can be a fluid-filled sac Situated for the tip of your elbow. Inflammation or an infection of this bursa can lead to swelling, https://www.theorthopaedicandpainpractice.com/why-do-my-inner-elbows-hurt/