Still a misunderstood condition, research is providing more ways for clinicians to diagnose excoriation disorder and its subtypes accurately. There are several ways to refer to compulsive skin picking including dermatillomania or excoriation disorder. They all mean the same thing and are often used interchangeably. No matter what it is called, there are many negative connotations with the word “diagnosis,” but there are also benefits to diagnostic accuracy.
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Therapists have mixed feelings about the diagnostic process. Some believe it is essential and imperative for accurate treatment while others look at it as a means to facilitate treatment but not as important as what a client experiences. Some will require a client to participate in multiple types of assessments and tests to get the diagnosis right, while others will only rely on client self-report and then pick an appropriate label out of the DSM-5. Regardless of one’s therapeutic perspective, an accurate diagnosis is key to selecting evidence-based treatments for clients. For people with skin picking disorder, diagnosis can be even more important due to the prevalence of misdiagnosis which does not help clients at all.
Dermatillomania is a disorder often confused for other mental health disorders such as obsessive-compulsive disorder, body dysmorphic disorder, addiction, or non-suicidal self-harm. Clinicians untrained in determining the differences between dermatillomania and OCD, for example, may select therapeutic interventions deemed effective for managing compulsive behaviors, but if a client has a skin picking disorder and not OCD, the treatment has a high risk of failing. When treatment fails due to misdiagnosis, it is not the client’s fault, yet they often feel increased depression and hopelessness because treatment did not help.
Let’s get back to defining diagnosis. The DSM-5, or the Diagnostic and Statistical Manual, fifth edition, is a publication from the American Psychiatric Association (APA) containing all of the recognized mental health disorders that the APA has determined to be validated by research. The book is big. It is equivalent in size to the Oxford English Dictionary. It is used by doctors, nurses, mental health providers, case workers, and anyone else who works with people who may have a mental health disorder. However, not all of the people who use the DSM-5 are fully trained in its application.
For each mental health disorder, the DSM-5 provides a background of what the disorder is, who tends to present with symptoms and when, the symptoms of the disorder, criteria for meeting diagnostic criteria, epidemiological data, onset and course, and most importantly, how to differentiate one disorder from another that looks similar. Most people who use the DSM focus on the symptoms list and run down the checklist to determine if a client fits. However, the fine details outside the list of diagnostic criteria take more time to absorb, but most people do not take the time to read. Those points often provide guidance on what is or is not consistent with the diagnosis as well as what to look for that may co-occur with the primary diagnosis. Since many people present to therapy with more than one disorder and depending upon what the person chooses to focus on during the assessment session, the clinician may diagnose a secondary condition and miss the others.
Skin picking disorder can be confused with physical skin conditions that incite picking behaviors which is why accurate assessment is so important. Skin conditions such as acne, eczema, keratosis pilaris, and others that cause skin blemishes that someone may feel compelled to remove. In such cases, the clinical obligation is to use assessment to discover the true motivation behind the behavior.
Accurate diagnosis serves a clinical purpose in that it drives treatment. When a therapist guides a client through goals of therapy to create a treatment plan, that treatment plan and subsequent interventions need to be consistent with the diagnosis. In healthcare systems where an insurance company is going to reimburse the therapist or doctor for their services, the treatment plan and diagnosis must be consistent with each other, or the provider will not receive reimbursement. The diagnosis also drives what kinds of medications a doctor can prescribe for a client. Clinically, the treatment goals must match the diagnosis. In cases where a therapist is in private practice and does not take insurance, the requirements for diagnosis are less strict. That is often the reason therapists who are skeptical of the diagnostic process choose to manage their practices differently.
Diagnosis also provides clients with many benefits.
Multiple formal assessments can be used to provide accurate information for diagnosis. Because of the similarity between compulsive skin picking and compulsive hair pulling, sometimes providers use assessments for trichotillomania to help determine that the skin picking is due to compulsive urges. One assessment that focuses on compulsive skin picking, The Milwaukee Inventory for the Dimensions of Adult Skin Picking, is designed to determine the subtype of picking a person experiences whether it is “focused” or “automatic.” The distinction is vital for developing treatment interventions because the motivations that drive focused picking are different from automatic picking. Finally, since dermatillomania is an episodic disorder, meaning there may be periods of time without picking urges, there is an assessment called the Skin Picking Scale-Revised that measures the level of functional impairment and emotional distress that accompanies hairpulling episodes.
Accurate diagnosis of dermatillomania is not only important for correctly identifying the disorder but identifying subtypes and severity can inform treatment, so it is helpful and not harmful. For a person who struggles with compulsive skin picking, an accurate diagnosis can be a source of hope.