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Conditions

Alcohol use disorder

Alcohol use disorder is a medical condition in which a person keeps drinking despite harm to their health, relationships, or daily life. It ranges from mild to severe and is treatable.

Also known as: AUD, Alcoholism

What alcohol use disorder actually is

Alcohol use disorder is a medical condition in which a person keeps drinking even though it’s causing problems in their health, relationships, work, or daily life. It’s a recognized form of substance use disorder, and clinicians diagnose it by looking at a set of features rather than a single behavior.

Those features include drinking more or longer than intended, wanting to cut down but struggling to, strong cravings, spending a lot of time drinking or recovering, and giving up activities that used to matter. Two related processes often appear: tolerance, which means needing more alcohol for the same effect, and withdrawal, which means uncomfortable symptoms when drinking slows or stops.

The condition exists on a spectrum and can be mild, moderate, or severe depending on how many features are present. Repeated heavy drinking can change brain circuits involved in reward and self-control, which is part of why it’s understood as a health condition rather than a matter of willpower.

What alcohol use disorder can feel like

Many people describe a pull toward drinking that’s hard to resist, along with a wish to stop or slow down. Alcohol may come to feel like the main way to handle stress, sadness, or social situations, even as it makes those things harder over time.

There’s often a cycle of promising to cut back, drinking anyway, and feeling guilt or shame afterward, which can feed more drinking. Withdrawal can bring shakiness, sweating, anxiety, trouble sleeping, or nausea. In severe cases, alcohol withdrawal can be medically dangerous, which is one reason stopping is safest with support.

What alcohol use disorder isn’t

Alcohol use disorder isn’t a sign of weak character or simply bad choices. The brain changes that come with heavy, repeated drinking make stopping genuinely hard, which is why treatment matters.

It also isn’t hopeless or rare. Recovery is common, and effective treatments exist, including counseling, behavioral therapies, medications approved for alcohol use disorder, and peer support. A return to drinking after a period of stopping is best understood as part of a chronic condition that can be managed, not proof that change is impossible.

Substance use disorder is the broader category that alcohol use disorder falls under. Dopamine is a brain chemical tied to the reward changes seen in addiction. Reinforcement helps explain how drinking patterns get strengthened. Relapse describes a return to use and how it’s understood in recovery.

When to seek professional care

If drinking is causing harm or feels hard to control, an evaluation can help no matter where someone falls on the spectrum. A clinician can sort out severity, check for safety, and discuss treatments, which may include counseling, medication, and support programs. Stopping heavy drinking suddenly can be dangerous, so it’s worth doing with medical guidance. If you’re having thoughts of suicide or self-harm, seek help right away. If you’re in crisis, call or text 988 in the United States.

When evaluation may help

Not everyone reading about alcohol use disorder needs treatment. If it's getting in the way of your day, your sleep, your work, or your relationships, or if it isn't easing on its own, a professional evaluation is a reasonable next step. Most people start with their primary care doctor or a therapist. A psychiatrist is the right call when medication may be involved or the picture is complicated, though waits can be long.

We keep an honest, no-commission rundown of the options, from primary care to telepsychiatry to crisis lines, on one page.

If you're in crisis or thinking about suicide, call or text 988 in the US, or go to the nearest emergency room.

When this word matters

It matters when drinking continues despite clear harm to health, relationships, or daily life, or when a person can't cut back even when they want to. Severity ranges from mild to severe, and it commonly overlaps with depression and anxiety.

Commonly confused with

Substance use disorderSocial or heavy drinkingA bad habit or willpower problemDepressionA moral failing

Frequently asked questions

Is alcohol use disorder a sign of weak willpower?

No. The brain changes that come with heavy, repeated drinking make stopping genuinely hard, which is why it's understood as a health condition rather than a matter of willpower. Effective treatments exist.

What are the signs of alcohol use disorder?

Features include drinking more or longer than intended, struggling to cut down, strong cravings, spending a lot of time drinking or recovering, and giving up activities that used to matter. Tolerance and withdrawal often appear too.

Can alcohol use disorder be treated?

Yes. Recovery is common, and treatments include counseling, behavioral therapies, medications approved for alcohol use disorder, and peer support. Because stopping heavy drinking suddenly can be dangerous, it's safest with medical guidance.

Related terms

Sources

  1. Substance Use and Mental Health , National Institute of Mental Health
  2. Alcohol Use Disorder (AUD) , MedlinePlus
  3. SAMHSA , Substance Abuse and Mental Health Services Administration
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<blockquote>
  <p><strong>Alcohol use disorder:</strong> Alcohol use disorder is a medical condition in which a person keeps drinking despite harm to their health, relationships, or daily life. It ranges from mild to severe and is treatable.</p>
  <p>&mdash; <a href="https://shrinktionary.com/terms/alcohol-use-disorder/">Shrinktionary</a>, a plain-English mental health dictionary, medically reviewed by a board certified psychiatrist.</p>
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Cite (APA)

Refai, S. (2026). Alcohol use disorder. Shrinktionary. https://shrinktionary.com/terms/alcohol-use-disorder/

Cite (MLA)

"Alcohol use disorder." Shrinktionary, https://shrinktionary.com/terms/alcohol-use-disorder/. Accessed July 25, 2026.

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