Distal symphalangism is a rare genetic disorder that affects the bones of the hands and feet. It is characterized by the fusion of the distal phalanges of the fingers and toes, resulting in short, stubby digits. This condition is usually inherited in an autosomal dominant pattern, meaning that only one copy of the mutated gene is needed to cause the disorder. Symptoms may include short, stubby fingers and toes, limited range of motion in the affected joints, and difficulty with activities that require fine motor skills. Treatment typically involves physical therapy and splinting to help maintain joint mobility.