Sesamoiditis is a condition observed as swelling and pain in the small sesamoid bones. These small bones are two petite, bean-shaped and sized bones positioned under the bottom of the hallux within the foot. These kinds of sesamoid bones act as levers, providing support to the tendons. https://articlebiz.com/article/1052337510-what-is-sesamoiditis-in-the-foot-and-what-can-be-done-about-it