C-fibers are a type of nerve fiber found in the human body that play a crucial role in transmitting pain signals. They are thin, unmyelinated fibers, which means they conduct signals more slowly than other types of nerve fibers. C-fibers are primarily responsible for carrying dull, aching pain sensations, often associated with chronic pain conditions. These fibers are activated by various stimuli, including injury or inflammation. When activated, C-fibers send signals to the spinal cord and brain, contributing to the perception of pain. Understanding C-fibers is important for developing treatments for pain management and improving overall pain relief strategies.