The length of time it takes for liver damage to reverse with alcohol abstinence can vary depending on the severity of the damage. According to the National Institute on Alcohol Abuse and Alcoholism (NIAAA) [2], some alcohol-related liver damage can be reversed with abstinence, but it depends on the extent of the damage and the overall health of the individual.

The liver has a remarkable ability to repair itself [3], and even in cases of severe alcohol-related liver disease, abstinence can lead to improvement in liver function [2]. However, it's important to note that the liver can only repair itself to a certain extent. If the damage is too severe, the liver may not be able to fully recover.

According to the NHS inform website [1], if you have alcohol-related liver disease, stopping drinking can help to stop the damage getting worse. However, it may take several months or even years for the liver to recover, depending on the level of damage.

In summary, while it is possible for some liver damage caused by alcohol to be reversed with abstinence, the length of time it takes for the liver to recover can vary widely depending on the severity of the damage and the overall health of the individual. It's important to note that the liver can only repair itself to a certain extent, and if the damage is too severe, the liver may not be able to fully recover.

Sources:

* [1] <https://www.nhsinform.scot/illnesses-and-conditions/stomach-liver-and-gastrointestinal-tract/alcohol-related-liver-disease/>
* [2] <https://arcr.niaaa.nih.gov/volume/41/1/natural-recovery-liver-and-other-organs-after-chronic-alcohol-use>
* [3] <https://www.drugpatentwatch.com/p/tradename/ALCOHOL>