At this stage, problematic porn use is not formally recognised as an addiction. It is not included as an addiction in the WHO's International Classification of Diseases or the American Psychiatric Association's Diagnostic Statistical Manual of Mental Illnesses, two international systems used to define and diagnose medical conditions.
Importantly, research on this topic has grown dramatically since these manuals came out. Evidence, including a recent international review, suggests problematic porn use can in some cases function like an addiction.
There are mounting calls to classify problematic porn use as a behavioural addiction, which would put it in the same category as other addictive online behaviours, such as gambling and gaming disorders. These behaviours light up similar areas of the brain's reward system. However, activities such as drinking water trigger a similar response, so it's important to consider this research in context.
The recent landmark social media addiction trial in the United States ruled that tech giants Meta and Google had engineered their platforms to be intentionally addictive. Similar design components are also used on many popular tube-sites - free platforms where porn videos are uploaded and watched. Modern internet porn offers unlimited access to sexual novelty by allowing people to "tab-switch" and continually seek new content during so-called "binges". Research shows both behaviours may be risk factors for problematic porn use.
However, there is reason to be cautious about describing problematic porn use as an addiction. Research consistently shows many people self-identify as being addicted to porn, even if their use is infrequent and generally under control. This is due to moral incongruence, which is when a person holds strong moral or religious beliefs against pornography, but continues to use it. This can cause significant distress or a strong sense of feeling addicted, even with controlled use, and has been linked to several underlying mental health conditions.