List of causes of regeneration

The causes of regeneration, especially amongst Time Lords, were many and varied.

They ran the gamut from simple desire to change to sentencing for convictions, to life-threatening maladies, to blunt-force trauma. While all of these might have been cause for alarm in humans, Time Lords sometimes expressed much less concern. As the Twelfth Doctor once told Clara, "Death [was] Time Lord for man-flu". (TV: Hell Bent)

The following are the known causes of regeneration of specific Time Lords or other regenerating individuals.

The Doctor

 * ''See also: The Doctor's perspectives on regeneration

The Time Lord known as the Doctor was known to regenerate on several occasions.

The Master
Though the Master famously stole bodies from others, they did also regenerate, many times. By most accounts, they were on their last incarnation when they began body snatching. Later on, the Master was granted a new regeneration cycle.

N-Space
Causas de regeneraciones