Dorota | London Massage 4U | Skin & Aesthetics | Charing Cross on Instagram: "A swollen “soft bump” on the tip of your elbow? That’s often bursitis. The elbow bursa is a small fluid-filled sac that reduces friction where skin, tendons and muscles move over bone. When it gets irritated, it can fill with extra fluid and swell — sometimes dramatically. Causes (why it happens) Most common triggers: • a knock/fall onto the elbow (hard surface impact) • repeated pressure (leaning on elbows at a desk,