A personality disorder is a mental health disorder that affects an individual’s perception of and response to the world. It results in a long-lasting pattern of unusual or dangerous behaviors that deviate from cultural norms.
People with personality disorders exhibit high rates of addiction. A 2014 study published in the journal Co-occurring Addictive and Psychiatric Disorders stated that approximately every other patient diagnosed with a personality disorder is also diagnosed with addiction. Research shows that 50 to 70 percent of those with borderline personality disorder have a co-occurring substance use disorder.
Substance use disorder is especially prevalent among those with antisocial, narcissistic, dependent and borderline personality disorders.
The onset of personality disorders typically begins during adolescence or early adulthood. When personality disorder and addiction co-occur, the personality disorder is generally diagnosed first because people often use drugs or alcohol to treat the symptoms of their mental health condition. In some cases, the addiction is diagnosed before the personality disorder.
Over time, self-medicating to treat symptoms of a personality disorder can lead to addiction. Once an addiction develops and drug abuse worsens, the severity of an individual’s personality disorder can also increase.
Mental health experts divide personality disorders into three groups of called clusters. Each cluster contains a group of disorders characterized by similar behaviors.
People with cluster A personality disorders display odd and eccentric behaviors.
People with cluster B personality disorders display dramatic, erratic and emotional behaviors.
People with cluster C personality disorders display anxious and fearful behaviors.
Cluster B personality disorders are the most commonly diagnosed type. People with cluster B disorders, especially those with borderline personality disorder or antisocial personality disorder, also come into contact with law enforcement more often than those with cluster A and C disorders.
People can exhibit symptoms of multiple personality disorders at once. In fact, people commonly display symptoms of multiple personality disorders from the same cluster.
Some people display symptoms that meet the criteria for a personality disorder but do not fall under the criteria of any specific disorder. These people may have what is called an unspecified personality disorder or a personality disorder not otherwise specified.
Knowing the symptoms of co-occurring personality disorders can help you or a loved one determine that an undiagnosed mental health disorder may be present.
Cluster A symptoms:
Cluster B symptoms:
Cluster C symptoms:
People displaying symptoms that occur repeatedly and cause significant functional impairment or distress should visit a mental health expert for an evaluation prior to starting addiction treatment. Those with an undiagnosed or untreated personality disorder are much less likely to maintain sobriety after addiction treatment.
Treating co-occurring personality and substance use disorders can be a complicated process. Making an accurate diagnosis is often difficult because of the complexity of the disorders and the relationship between them. Multiple symptoms of personality disorders overlap with those of drug addiction, and one disorder can remain undetected in some cases.
Research shows that 50 to 70 percent of those with borderline personality disorder have a co-occurring disorder.
Seeking help from a qualified treatment professional is the first step toward successful recovery. It is important to find doctors who have experience treating people with personality disorders and co-occurring addiction. Research shows that the most effective approach is to treat both disorders at the same time.
Treatment for people with both disorders may involve multiple specialists who work together as a team. Team members may include a primary care provider, a group or individual therapist, a psychiatrist and a substance abuse counselor.
Experts on the treatment team require special skills to effectively connect with people who have co-occurring mental health disorders. Addiction treatment dropout rates are high among people with personality disorders. Patients often end treatment because of a strained or failed relationship with their therapist.
Research on borderline personality disorder and addiction shows that dual diagnosis treatment programs can provide support and effective management that improves patient outcomes and motivates them to continue treatment.
People diagnosed with these disorders often resist treatment. They are far more likely to end treatment early than those without a personality disorder. The combination of appropriate treatment and therapy groups such as Alcoholics Anonymous and Narcotics Anonymous can help motivate people to stay in treatment.
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Studies suggest that the most promising treatment methods for co-occurring disorders include dialectical behavior therapy, cognitive behavioral therapy and a dynamic psychology approach.
Effective dual recovery treatment programs combine inpatient and outpatient addiction treatment with treatments and therapies that address the recovering individual’s personality disorder. Therapy educates patients about addiction and the problems that arise from self-medicating with drugs or alcohol.
Leading treatment facilities focus on building a strong relationship between therapists and patients, which provides patients with stability and trust in times of emotional distress.
Families of individuals facing addiction and a personality disorder can help by working with their loved one during treatment to help repair damaged relationships. Treatment professionals can help by providing an environment where the patient’s family and loved ones can learn the skills needed to improve relationships and provide continued support throughout recovery.
The chance of relapse among people with co-occurring disorders is high. A relapse can cause individuals to fall back into harmful situations and patterns of behavior.
The risk of suicide among people with co-occurring personality and substance use disorders is also high. These individuals may view suicide or self-harm as an outlet to deal with difficult emotions.
Continuing treatment after initially achieving sobriety is incredibly important for avoiding these types of risks.
Group therapy, 12-step meetings and online support communities can greatly benefit people who need help continuing their recovery after completing treatment. Families can also turn to support groups such as Al-Anon for additional resources.