This condition is a thickening of the fascia on the palm of the hand. The fascia is a connective tissue located just beneath the skin of the palm and fingers. This thickened fascia can form lumps or nodules under the skin, or long thick cords of tissue that extend from the palm to the fingers. Often, this thickened tissue contracts. This causes one or more fingers to curl toward the palm. This is called a flexion contracture.