diff --git a/modules/user/user.api.php b/modules/user/user.api.php
index 722fb31dc54..f4c3374468b 100644
--- a/modules/user/user.api.php
+++ b/modules/user/user.api.php
@@ -38,6 +38,9 @@ function hook_user_load($users) {
  * removed from the user tables in the database, and before
  * field_attach_delete() is called.
  *
+ * Modules should additionally implement hook_user_cancel() to process stored
+ * user data for other account cancellation methods.
+ *
  * @param $account
  *   The account that is being deleted.
  *
@@ -52,11 +55,17 @@ function hook_user_delete($account) {
 /**
  * Act on user account cancellations.
  *
- * The user account is being canceled. Depending on the account cancellation
- * method, the module should either do nothing, unpublish content, or anonymize
- * content.
+ * This hook is invoked from user_cancel() before a user account is canceled.
+ * Depending on the account cancellation method, the module should either do
+ * nothing, unpublish content, or anonymize content. See user_cancel_methods()
+ * for the list of default account cancellation methods provided by User module.
+ * Modules may add further methods via hook_user_cancel_methods_alter().
  *
- * Expensive operations should be added to the global batch with batch_set().
+ * This hook is NOT invoked for the 'user_cancel_delete' account cancellation
+ * method. To react on this method, implement hook_user_delete() instead.
+ *
+ * Expensive operations should be added to the global account cancellation batch
+ * by using batch_set().
  *
  * @param $edit
  *   The array of form values submitted by the user.
@@ -67,7 +76,6 @@ function hook_user_delete($account) {
  *
  * @see user_cancel_methods()
  * @see hook_user_cancel_methods_alter()
- * @see user_cancel()
  */
 function hook_user_cancel($edit, $account, $method) {
   switch ($method) {
diff --git a/modules/user/user.pages.inc b/modules/user/user.pages.inc
index 6cfd15fda21..284b433e400 100644
--- a/modules/user/user.pages.inc
+++ b/modules/user/user.pages.inc
@@ -453,7 +453,7 @@ function user_cancel_confirm_form_submit($form, &$form_state) {
 /**
  * Helper function to return available account cancellation methods.
  *
- * Please refer to the documentation of hook_user_cancel_methods_alter().
+ * See documentation of hook_user_cancel_methods_alter().
  *
  * @return
  *   An array containing all account cancellation methods as form elements.