The Smooth Fox Terrier is a breed of dog, one of many terrier breeds. It was the first breed in the fox terrier family to be given official recognition by The Kennel Club (circa 1875; breed standard 1876). It is well known, and although not a widely popular breed today outside hunting and show circles, it is extremely significant due to the large number of terriers believed descended from the breed. The Smooth Fox Terrier generally lives 12 to 15 years, and can live as long as 19 years. The breed is genetically quite healthy. Some known health problems are deafness, luxating patellas and a variety of eye disorders such as lens luxation, distichiasis, and cataracts. Skeletal problems that can occur include Legge-Perthes disease and shoulder dislocations. Myasthenia Gravis and idiopathic epilepsy have also been reported, as well as goiter.