When a werewolf is injured in its wolf form, the wound sympathetically carries over to the human form and may reveal the identity of the werewolf. However, its increased vitality causes it to heal much more quickly than an ordinary person, and to be able to tolerate injuries that would incapacitate the average man or woman.

One theory, presented by P. E. I (Issac) Boneits in "Real Magic" (1971), explains that sympathetic wounding actually is a cellular psychokinesis brought on by an extreme telepathic rapport between the human and the animal. In such case the human identifies with the animal so much that he actually takes over the animal's body. So any wounding the person receives while controlling the werewolf will carry over through cellular psychokinesis to the human body.