Most people who use drugs and develop a problem with them do not get treatment. This is not a small gap. It is a global pattern that shows up in rich and poor countries alike, across Africa, Asia, the Americas, and Europe.
According to the 2024 World Drug Report, only about 1 in 11 people with a drug use disorder worldwide actually receive treatment [1]. The gap is even wider in some regions.
This article looks at the documented, research-backed reasons behind this pattern. It also separates common myths from what studies actually show. The goal is simple: to help families, health workers, and people who use drugs themselves understand why “just get help” is rarely that easy.
A quick note on the words used here
“Substance use disorder” (SUD) is the medical term for what people commonly call drug addiction. It means a person’s drug use has become harmful to their health, relationships, or daily life, and they have lost some control over stopping.
“Treatment gap” is another term used in this article. It simply means the difference between the number of people who need help for a condition and the number who actually get it.
How big is the problem, really
Substance use disorders are a large and growing global health issue, not a niche one.
| Measure | Figure | Source |
|---|---|---|
| People affected by drug use disorders globally, 2021 | Over 296 million | World Drug Report 2023, via Frontiers in Public Health [2] |
| People with alcohol or drug use disorders globally | About 400 million | WHO, 2024 [3] |
| Global deaths yearly from alcohol and drug use | Over 3 million | WHO, 2024 [3] |
| People with drug use disorders who receive treatment worldwide | About 1 in 11 | World Drug Report 2024, via WHO EMRO [1] |
| Treatment gap in low and middle-income countries | At least 75 percent | International Journal of Mental Health Systems, 2020 [4] |
Substance use affected more than 296 million people globally in 2021, a number that had jumped by 45 percent over the previous decade. Even so, only about 20 percent of people with drug use disorders received pharmacological treatment for it [2]. A separate WHO report based on 2019 data estimated that 400 million people lived with alcohol and drug use disorders worldwide, including 209 million with alcohol dependence specifically [3].
In low and middle-income countries, the picture is worse. Research on community-based interventions found the treatment gap for substance use disorders there to be at least 75 percent [4].
These numbers matter because they show something important. The problem is not simply that a few stubborn individuals refuse help. It is a pattern seen across very different health systems, cultures, and income levels.
Why “they just don’t want help” is too simple
When someone keeps using drugs despite clear harm, it is tempting to see this as pure stubbornness or a lack of willpower. Research paints a more complicated picture, one involving brain changes, fear, cost, and how health systems themselves are built.
1. The brain changes how choices get made
Addiction is now classed as a chronic brain disorder by major health bodies, not simply a bad habit. The prefrontal cortex is the part of the brain responsible for thinking, planning, decision-making, and self-control over impulses [5]. Repeated drug use can weaken how well this part of the brain works.
Studies show that lower activity in the “stop” function of the prefrontal cortex is linked to increased activity in stress-related brain circuits, and this combination drives continued drug taking and relapse [6]. In simple terms, the very brain system a person needs in order to decide “I should get help and stop” is often the system that has been weakened by the drug itself.
This does not remove a person’s responsibility for their actions. It does mean that the decision to seek help is genuinely harder for someone with an active substance use disorder than for someone without one, because the disorder itself affects decision-making circuits.
2. Many genuinely do not believe they have a problem, or are not ready to stop
This is one of the most consistently reported reasons in research, and it is different from stigma or cost.
In a large United States national survey, the vast majority of adults who needed treatment but did not get it said they simply did not think they needed it. Among the smaller group who did recognize they needed help but still did not seek it, the single biggest reason given was that they were not ready to stop using [7].
A separate study of formerly incarcerated adults with substance use disorders found a similar pattern. The most common barrier reported was not thinking they had a problem with drugs, followed by discomfort discussing personal matters with others, and difficulty getting into treatment, such as being placed on a waiting list [8].
This links back to the brain science above. Denial in addiction is not always dishonesty. It can be a genuine effect of how the disorder distorts a person’s own view of their situation.
3. Fear of judgment and stigma
Stigma means being viewed negatively, judged, or excluded because of a condition, in this case drug use.
One national poll found that fewer than 1 in 5 people were willing to closely associate with someone who has a substance use disorder [7]. This fear is not imagined. Research on health workers has found that when professionals hold stereotyped views, such as assuming patients lack motivation, it reduces patient empowerment and the quality of care people with substance use disorders receive [9].
In some regions, this is made worse by close-knit communities where confidentiality is hard to guarantee. Stigma around drug use is named as one reason the treatment shortfall is even wider in some regions than the global average [1].
4. Practical barriers, money, distance, and waiting lists
Even when someone genuinely wants help, the system is often not built to receive them quickly.
A 2021 United States national survey found that 43.7 million people over age 12 needed treatment, yet only about 3 million, or 6.9 percent, actually received care at a specialty facility in the previous year [10]. Among the barriers identified, staff and parents pointed to a lack of motivation and long waiting lists for services as major reasons treatment did not start [10].
In lower-income countries, the barriers are often structural rather than personal. Access to evidence based care for substance use disorders in low and middle income countries is limited by poor access to general health and mental health services, limited clinical skills among available health workers, lack of political will or funding, and long standing stigma and discrimination [11].
A scoping review of residential treatment in Sub-Saharan Africa reached a similar conclusion. Both structural barriers and non-structural barriers, such as stigma and discrimination, limit access to residential and inpatient substance use treatment in the region [12].
5. Health systems themselves are not always ready
It is not only patients who hesitate. Doctors do too. A 2024 study led by the National Institute on Drug Abuse found that doctors who were reluctant to treat addiction most commonly cited a lack of institutional support as the main barrier, not personal unwillingness [13]. This matters because when the medical system under-supports addiction care, it becomes harder for a motivated patient to access consistent help even when they want it.
6. Relapse is part of the expected pattern, not proof that help “does not work”
Substance use disorders are relapsing conditions, meaning periods of not using can be followed by a return to use, in the same way other chronic illnesses have flare-ups [13]. Research on treatment outcomes backs this up. Relapse rates after treatment are around 70 percent, and dropout before treatment is even completed happens in about 35 percent of cases, even among people who sought treatment voluntarily [14].
This single fact explains a lot of the frustration families feel. A person may try treatment, relapse, and then avoid trying again because they see the earlier attempt as a failure, when in medical terms it is closer to what doctors expect to see with a chronic condition.
Myth versus fact
It is easy to confuse common assumptions with what research actually shows. Here is a clear separation.
| Claim | Status | What is actually documented |
|---|---|---|
| People who refuse help simply lack willpower | Myth, an oversimplification | Brain imaging research links reduced prefrontal cortex activity to weaker impulse control during addiction, not a simple character flaw [5][6]. |
| Addiction is a moral failing, not a health condition | Myth | Major health bodies, including the WHO and NIDA, classify substance use disorders as chronic, treatable brain conditions [3][5]. |
| Once someone relapses, treatment has failed for good | Myth | Relapse is common and expected in chronic conditions. Many people who relapse go on to recover after further attempts [13][14]. |
| Most people who need treatment never get it | Documented fact | Global data shows roughly 1 in 11 people with a drug use disorder receive treatment [1]. |
| Stigma reduces the chance someone will seek help | Documented fact | Multiple studies link stigma and fear of judgment directly to lower rates of help seeking [7][9]. |
| Waiting lists and cost stop people who are ready for treatment | Documented fact | National survey data shows waiting lists and lack of access are named barriers even among people who wanted care [10]. |
| Rehab or detox alone cures addiction permanently | Myth | Research describes addiction as a chronic, relapsing condition that typically needs ongoing management, similar to diabetes or hypertension, rather than a one time cure [13]. |
What the research says can help
None of this is personal medical advice. It reflects general patterns found in published research and public health guidance.
- Treating substance use disorders as a long-term, manageable condition, similar to other chronic illnesses, rather than a one-time fix.
- Reducing stigma in communities and among health workers, since studies link stigma directly to lower help-seeking.
- Expanding access closer to where people live, especially in low and middle-income countries where distance and cost are major barriers.
- Screening for substance use within general health and mental health services, since many people with substance use disorders also have other mental health needs.
- Involving family and community support, while respecting the person’s right to make their own choices about their care.
- Continuing efforts even after a relapse, since relapse is a documented and expected part of many people’s path toward recovery, not a sign that recovery is impossible.
International bodies are already working on this. In 2024, the United Nations Office on Drugs and Crime trained more than 870 professionals across ten countries to improve the quality of drug use disorder treatment, alongside a global initiative to study scalable treatment for stimulant use disorders [15].
This is a global pattern, not one country’s issue
The patterns described here appear in national surveys from the United States, in community studies from Ethiopia, in reviews across Sub-Saharan Africa, and in research from India, the Philippines, Malaysia, Vietnam, Turkey, and Indonesia. Studies across several low and middle-income countries have found that young people in these settings often have very limited access to effective treatment compared with high-income countries, and stigma toward people who use drugs appears across cultures, not just one region [16]. The specific barriers differ by country, but the underlying pattern, that most people who need help do not receive it, holds broadly across income levels and regions.
Disclaimer
This article is for general information only. It is not medical advice, a diagnosis, or a substitute for care from a qualified doctor, psychiatrist, or licensed addiction counselor. If you or someone you know is struggling with drug use, please speak to a qualified health professional or a local substance use support service. If this article contains anything you believe is inaccurate or out of date, or if you would like to suggest a correction, please contact us so we can review and update it.
References
- World Health Organization Regional Office for the Eastern Mediterranean. Substance use disorders: policy dialogue. https://www.emro.who.int/media/news/substance-use-disorders-policy-dialogue.html
- Frontiers in Public Health. Global burden on drug use disorders from 1990 to 2021 and projections to 2046. https://www.frontiersin.org/journals/public-health/articles/10.3389/fpubh.2025.1550518/full
- World Health Organization. Over 3 million annual deaths due to alcohol and drug use, majority among men. 25 June 2024. https://www.who.int/news/item/25-06-2024-over-3-million-annual-deaths-due-to-alcohol-and-drug-use-majority-among-men
- International Journal of Mental Health Systems. Community-based psychosocial substance use disorder interventions in low-and-middle-income countries: a narrative literature review. https://link.springer.com/article/10.1186/s13033-020-00405-3
- National Institute on Drug Abuse (NIDA). Drugs, Brains, and Behavior: The Science of Addiction. Drugs and the Brain. https://nida.nih.gov/publications/drugs-brains-behavior-science-addiction/drugs-brain
- National Academies of Sciences, Engineering, and Medicine. The Neurobiology of Substance Use, Misuse, and Addiction. Facing Addiction in America (NCBI Bookshelf). https://www.ncbi.nlm.nih.gov/books/NBK424849/
- Fort Behavioral Health. 5 Reasons People Don’t Seek Help for Addiction. https://fortbehavioral.com/addiction-recovery-blog/5-reasons-people-dont-seek-help-for-addiction/
- NCBI PMC. Barriers to addiction treatment among formerly incarcerated adults with substance use disorders. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6102909/
- NCBI PMC. Addressing stigma within the dissemination of research products to improve quality of care for pregnant and parenting people affected by substance use disorder. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10282149/
- NCBI PMC. Barriers to Substance Use Treatment for Individuals with Substance Use Disorders. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10760248/
- NCBI PMC. Closing the treatment gap for alcohol use disorders in low- and middle-income countries. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9947611/
- NCBI PMC. Residential and inpatient treatment of substance use disorders in Sub-Saharan Africa: a scoping review. https://pmc.ncbi.nlm.nih.gov/articles/PMC10782522/
- National Institute on Drug Abuse (NIDA). Doctors reluctant to treat addiction most commonly report lack of institutional support as barrier. 17 July 2024. https://nida.nih.gov/news-events/news-releases/2024/07/doctors-reluctant-to-treat-addiction-most-commonly-report-lack-of-institutional-support-as-barrier
- NCBI PMC. Functional connectivity of dorsolateral prefrontal cortex predicts cocaine relapse, implications for neuromodulation treatment. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8226190/
- United Nations Office on Drugs and Crime (UNODC). Global advancements in effective drug use disorder treatment and care in 2024. https://www.unodc.org/unodc/drug-prevention-and-treatment/news-and-events/2025/April/global-advancements-in-effective-drug-use-disorder-treatment-and-care-in-2024.html
- NCBI PMC. Addictive problems among young people in low- and middle-income countries: A call for more research. https://pmc.ncbi.nlm.nih.gov/articles/PMC9772246/
