Onychectomy

Onychectomy, popularly known as declawing, is an operation to remove an animal's claws surgically by means of the amputation of all or part of the distal phalanges, or end bones, of the animal's toes. Because the claw develops from germinal tissue within the third phalanx, amputation of the bone is necessary to fully remove the claw. The terms onychectomy (origin: Greek ὄνυξ onyx, 'nail' + ἐκτομή ektomē, 'excision') and declawing imply mere claw removal, but a more appropriate description would be phalangectomy,^[1] excision of toe bone.

Although it has been somewhat common in Canada and the United States,^[2] declawing is considered an act of animal cruelty in many countries, (see "Declawing practices" below) as it causes physical and psychological suffering to the animal (although the extent of this suffering is subject to debate).^[3]