Healing



Healing is a sub-skill of waterbending which involves healing wounds by redirecting energy paths (or chi) throughout the body, using water as a catalyst.

History
After Aang ignored Jeong Jeong's warnings, he accidentally burned Katara due to lack of control over his firebending. Seeking to soothe the pain, Katara put her hands down in a creek, only to see the water around her hands glow silvery-blue and heal her. Katara used this ability again at the end of the episode to heal a burn on Aang's forearm, after a fight with Zhao.

In the Northern Water Tribe, this ability is the only aspect of waterbending taught to female waterbenders, due to the traditionally patriarchal culture of the tribe. It is not known to what extent the Northern Water Tribe teaches healing to male waterbenders, however, there are male healers in Republic City during Avatar Korra's time.



After the Hundred Year War, it was revealed that Katara had passed the art of healing onto Avatar Korra, as she used it to heal Bolin's shoulder after he injured it in the third round of the Fire Ferrets' semifinal match in the pro-bending tournament.

Healers are quite prominent in Republic City and the best of them were visited by Tahno after his bending was taken from him by Amon. After Tarrlok fabricated evidence of a "fight" with the Equalists in City Hall, a healer was brought in to treat his arm, which he had electrocuted to strengthen his alibi.

Limits


Physically, healing draws on the restorative properties of water to organisms, such as human beings, that are primarily composed of it. Though unusually strong and powerful, waterbending induced healing cannot heal every ailment, for example, Jet's internal wounds or the complications associated with Princess Yue's birth. It is shown that healing is ineffective on a person who has had their chi flow blocked or otherwise disrupted; Katara was unable to help a Terra Team member who had been a victim of Ty Lee's chi-blocking skills, and not even the best healers of Republic City were able to counteract the effect of Amon's power to take bending away.

So far, waterbending induced healing has been shown to work on physical injuries, such as burns (Toph's feet and Katara's own hands ), lacerations (Hakoda's injury during the Day of Black Sun ), broken bones (Sokka's left arm), diseases brought on by severe pollution (Jang Hui villagers ), and severe tissue damage caused by lightning bolts (Aang and Zuko ); it has even shown to counteract mental distress and tampering (Jet ). The healing abilities of a waterbender appear to be influenced by the water they use: when using a special water from the Spirit Oasis in the North Pole, Katara was able to save Aang's life after he was mortally wounded from being struck by lightning (though he remained in a coma for a few weeks and required follow up healing sessions to cope with the pain and be restored to full health), while using regular water only made her father strong enough to walk on his own by the next summer.

Known practitioners

 * Yugoda
 * Katara
 * Korra
 * Many female healers in the Northern Water Tribe
 * Many healers in Republic City

Trivia

 * It was implied by Katara that the special properties of the Spirit Oasis water could heal Zuko's scarred face. A curious fact is that after healing Aang, the oasis water disappeared, as if it had been "used up".
 * Although female waterbenders are usually healers, a male one is seen healing Tarrlok.