Porcupine disease, commonly known as porcupine tick disease or dermatophilosis, refers to a skin condition that affects porcupines. This disease is caused by the bacterium Dermatophilus congolensis and primarily affects animals with spiky spines like porcupines. It leads to the formation of crusty scabs on the skin, inflammation, and hair loss. Although "porcupine disease" is commonly used, there are alternative synonyms to describe this condition. These include porcupine tick infection, porcupine dermatopathology, quill disease, or porcupine skin ailment. By using these synonyms, veterinarians, biologists, and researchers can effectively communicate and discuss the various aspects of this disease among themselves and with interested individuals in the field.