Dog chew because of uneasy things happening to his leg. Some insects or earthworms are attached to his skin under dogs hair towards a dogs skin which gives a lot of pain to your loved dogs. It can be stopped by making dog a regular bath and trim some hairs which can https://petdogwheelchair.com/dog-chewing-on-leg-stop-him/ (make a dog healthy) and can stop chewing of his own leg.