The human hand contains a complicated mechanism that allows it to conduct useful tasks. Its functionality is dependent on its integrity. Understanding typical hand characteristics necessitates a thorough examination of sensory and mechanical aspects. Skin, blood vessels, nerves, tendons, ligaments, bones, and joints make up the body. Pain or reduced function may be the result of a problem with any of these structures. The radius and ulna are two of the 29 bones of the hand and wrist. Bones are dense, stiff bones that support the hand's soft tissue. Joints, like hinges, are the points where adjacent bones contact and allow for mobility. Knuckles are the joints that connect the fingers to the rest of the body. The term "fracture" refers to a break in the bone. Arthritis develops when the joint cartilage is damaged or worn out. Ligaments are the thick white "straps" of strong tissue that connect the joints and allow them to move.