Dr. Stacy Blum on Instagram: "A digital mucous cyst is a benign, fluid-filled lump that commonly forms near the end joints of fingers or toes, often associated with osteoarthritis. These cysts arise from leakage of synovial fluid from the joint into the surrounding tissue or from a degenerative process in the joint. They are typically translucent, painless, and slow-growing, though they can cause discomfort or nail deformity if they press on nearby structures. Treatment may include observation,