Lederhose's Disease, also known as Morbus Ledderhose, plantar fibromatosis, and plantar aponeurosis, is a relatively uncommon non-malignant thickening of the feet's deep connective tissue, or fascia. In the beginning, where nodules or cords start growing along tendons of the foot, the disease is minor, can be painful. Eventually, however, the cords thicken, the toes stiffen and bend, and walking becomes painful. The disease is named after Dr. Georg Ledderhose, a German surgeon who described the condition for the first time in 1894. A similar disease is Dupuytren's disease, which affects the hand and causes bent hand or fingers.