Onychotillomania - Rxharun


Onychotillomania is a type of obsessive-compulsive disorder (OCD) that involves the repeated picking, biting, or pulling of one’s own nails. This condition can cause significant distress and impairment in daily functioning, and can lead to physical damage to the nails and surrounding skin.


Onychotillomania, also known as nail biting, is a common behavioral disorder characterized by the repeated urge to bite one’s nails. This behavior can cause significant damage to the nails and surrounding skin, leading to pain, infection, and even disfigurement. While the exact causes of onychotillomania are not well understood, several factors have been identified that may contribute to its development.

  1. Psychological factors: One of the main causes of onychotillomania is psychological stress. People who suffer from anxiety, depression, or other mental health conditions may turn to nail biting as a way to cope with stress and anxiety. Nail biting can also be a form of self-soothing behavior, helping people to calm down when they feel overwhelmed.
  2. Habit: Nail biting can also become a habit, where a person engages in the behavior without even realizing it. This can be especially true for people who have been biting their nails for a long time, as the behavior can become automatic.
  3. Family history: Onychotillomania may be partially genetic, as the behavior has been observed to run in families. People with close relatives who bite their nails are more likely to develop the behavior themselves.
  4. Environmental factors: Environmental factors, such as boredom, frustration, or even hunger, can also trigger nail biting. For some people, the behavior may be a response to a specific situation or event, such as a particularly stressful day at work or school.
  5. Sensory factors: Some people bite their nails as a response to sensory stimuli, such as the sensation of a hangnail or a rough edge on their nails. This type of nail biting is often related to sensory processing issues, where the person has difficulty processing sensory information from their environment.
  6. Substance abuse: Substance abuse, including alcohol and drug use, has been linked to an increased risk of developing onychotillomania. Substance abuse can cause changes in brain chemistry that can trigger compulsive behaviors, such as nail biting.
  7. Neurological factors: Onychotillomania has also been linked to neurological factors, such as Tourette’s syndrome and obsessive-compulsive disorder (OCD). These conditions are characterized by repetitive behaviors and tics, and nail biting may be one of the symptoms of these disorders.
  8. Developmental factors: Onychotillomania can also develop during childhood and adolescence, as children and teenagers are more likely to engage in repetitive behaviors. This type of nail biting may be a form of self-soothing behavior, helping children and teenagers to manage stress and anxiety.

Onychotillomania is a complex behavioral disorder that can be caused by a variety of factors. While the exact causes of the disorder are not well understood, psychological stress, habit, family history, environmental factors, sensory factors, substance abuse, neurological factors, and developmental factors are all believed to play a role in its development. If you or someone you know is struggling with onychotillomania, it is important to seek help from a mental health professional, as this behavior can cause significant harm to the nails and surrounding skin. With proper treatment and support, it is possible to overcome onychotillomania and manage the urges to bite one’s nails.


Here is a list of the main symptoms associated with onychotillomania:

  1. Recurrent and persistent nail biting: The most noticeable symptom of onychotillomania is the act of biting one’s nails. This behavior is often repetitive, occurring multiple times per day, and can cause significant damage to the nails, cuticles, and surrounding skin.
  2. Feelings of tension or anxiety before biting: Many individuals with onychotillomania report feeling tense or anxious prior to biting their nails. This tension may be relieved temporarily after biting, but it often returns quickly, leading to a cycle of nail biting and tension.
  3. Difficulty resisting the urge to bite: Despite a desire to stop, individuals with onychotillomania often struggle to resist the urge to bite their nails. This can be especially difficult in situations where the individual is bored, anxious, or feeling stressed.
  4. Shame and embarrassment about the behavior: Nail biting is often considered a socially unacceptable behavior, and individuals with onychotillomania may feel ashamed or embarrassed about their habit. This can lead to feelings of low self-esteem and a desire to hide the behavior from others.
  5. Damaged or disfigured nails: The repeated act of biting one’s nails can cause significant harm to the nails, including breaks, chips, and tears. Over time, this can result in misshapen or disfigured nails that may be difficult to conceal.
  6. Irritation and infection of the surrounding skin: The repeated act of biting one’s nails can also cause irritation and infection of the surrounding skin, including the cuticles and fingers. This can be particularly painful and uncomfortable, and may require medical treatment.
  7. Difficulty performing daily activities: For some individuals, nail biting can become so severe that it interferes with their ability to perform daily activities, such as typing on a keyboard or playing a musical instrument. This can lead to additional stress and frustration.
  8. Avoidance of social situations: The shame and embarrassment associated with onychotillomania can lead individuals to avoid social situations where their behavior may be noticed. This can result in feelings of isolation and decreased social interaction.
  9. Use of other coping mechanisms: In an attempt to resist the urge to bite their nails, some individuals with onychotillomania may turn to other coping mechanisms, such as skin picking, hair pulling, or thumb sucking. These behaviors can cause additional physical harm and may lead to additional mental health concerns.
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It is important to note that the symptoms of onychotillomania can vary greatly from person to person. Some individuals may experience only a few of the symptoms listed above, while others may experience many or all of them. Additionally, the severity of symptoms can also vary greatly, with some individuals experiencing only mild symptoms, while others may struggle with severe and debilitating nail biting.


There are several diagnostic tests used to identify onychotillomania, which can help to determine the best course of treatment for the individual.

  1. Clinical Interview: A clinical interview is a diagnostic tool used by mental health professionals to assess a patient’s symptoms and determine a diagnosis. In the case of onychotillomania, a clinician will ask the patient about the frequency, duration, and intensity of their nail biting habit. They will also ask about the presence of any related symptoms, such as anxiety, stress, or depression. This information will be used to determine if the patient meets the criteria for a diagnosis of onychotillomania.
  2. Psychological Assessment: A psychological assessment is a comprehensive evaluation of a person’s mental health and well-being. This can include a variety of tests and assessments, such as questionnaires, personality tests, and cognitive assessments. In the case of onychotillomania, a psychologist may use these tools to assess the patient’s levels of anxiety, stress, and depression, which are often associated with the disorder.
  3. Observation: Observation is a simple yet effective diagnostic tool used to assess onychotillomania. During an observation, a clinician will watch the patient as they engage in their nail biting behavior, taking note of the frequency, duration, and intensity of the habit. This information can be used to determine the severity of the disorder and help guide treatment.
  4. Nail Analysis: Nail analysis is a diagnostic tool used to assess the physical damage caused by onychotillomania. During this test, a clinician will examine the patient’s nails, looking for signs of trauma, such as thinning, ridging, and discoloration. They may also assess the surrounding skin for signs of infection, redness, and swelling. This information can be used to determine the severity of the disorder and help guide treatment.
  5. Laboratory Tests: In some cases, laboratory tests may be used to diagnose onychotillomania. For example, a skin culture may be taken to identify any underlying infections, or a blood test may be used to assess the patient’s overall health and determine if there are any underlying medical conditions that may be contributing to the nail biting behavior.
  6. Imaging Tests: Imaging tests, such as X-rays or MRI scans, may be used in rare cases to diagnose onychotillomania. For example, an X-ray may be used to assess any damage to the bones or joints that may have been caused by the nail biting behavior.
  7. DSM-5 Criteria: The DSM-5, or the Diagnostic and Statistical Manual of Mental Disorders, is the standard diagnostic tool used by mental health professionals to diagnose mental disorders. To diagnose onychotillomania, a clinician must determine that the patient meets the criteria listed in the DSM-5, which include repeated attempts to stop or reduce the nail biting behavior, significant distress or impairment in social, occupational, or other areas of functioning, and that the behavior is not due to a medical condition or another mental disorder.


There are several treatments available for onychotillomania, including behavioral therapy, pharmacotherapy, and self-help strategies. The most effective treatment plan will depend on the severity of the nail biting habit, the presence of co-occurring psychiatric conditions, and the individual’s personal preferences.

  1. Behavioral Therapy:
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Behavioral therapy is the most commonly used treatment for onychotillomania. This form of therapy aims to modify the behavior by teaching the individual to recognize the triggers that lead to nail biting and to replace the nail biting habit with a healthier one.

A. Habit Reversal Training (HRT):

Habit Reversal Training is a type of behavioral therapy that involves teaching the individual to identify the specific situations and emotions that trigger the nail biting habit. The individual is then taught to substitute the nail biting behavior with a different, less harmful action, such as squeezing a stress ball or playing with a fidget toy.

B. Cognitive-Behavioral Therapy (CBT):

Cognitive-behavioral therapy is a type of therapy that focuses on the thoughts and beliefs that drive the nail biting behavior. The therapist will help the individual to identify and challenge negative thoughts and beliefs that contribute to the nail biting habit, and replace them with more positive and constructive thoughts.

C. Acceptance and Commitment Therapy (ACT):

Acceptance and Commitment Therapy is a type of therapy that teaches the individual to accept their thoughts and feelings without judgment and to focus on their values and goals. This form of therapy can help individuals with onychotillomania to develop a more accepting and compassionate relationship with themselves, which can reduce the urge to bite their nails.

  1. Pharmacotherapy:

Pharmacotherapy involves the use of medications to treat onychotillomania. Some medications can help to reduce anxiety, obsessive thoughts, and compulsive behaviors associated with the disorder.

A. Selective Serotonin Reuptake Inhibitors (SSRIs):

Selective Serotonin Reuptake Inhibitors (SSRIs) are a type of antidepressant medication that can be effective in treating onychotillomania. These medications work by increasing the levels of serotonin, a neurotransmitter in the brain that regulates mood and anxiety. SSRIs can help to reduce the anxiety and obsessive thoughts that drive the nail biting habit.

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B. Anti-Anxiety Medications:

Anti-anxiety medications, such as benzodiazepines, can be used to treat onychotillomania. These medications work by reducing anxiety and promoting relaxation, which can help to reduce the urge to bite the nails.

  1. Self-Help Strategies:

In addition to behavioral therapy and pharmacotherapy, there are several self-help strategies that can be effective in treating onychotillomania. These strategies can be used in conjunction with therapy or medication, or on their own.

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