Ichthyosis (Jack Russell Terrier Type) is an inherited condition of the skin affecting the Jack Russell Terrier. This condition is characterized by parchment like scaling of the skin generalized over the whole body, but easily visible in the non or lightly haired regions of the abdomen. Present from birth, scaling skin can persist into adulthood and may result in secondary infections including ear infections. The pads of the feet may show signs of skin overgrowth and nails may be soft. Ichthyosis (Jack Russell Terrier Type) does not typically cause hair loss. Treatment focuses on reducing complications and improving the health of the skin through oral and topical medications.