Isla Bennett
Nail biting, also known as onychophagy or onychophagia, is an oral compulsive habit of biting one's fingernails. It is a common habit, especially among children, but can also be a source of shame and guilt, and may lead to reduced quality of life. Excessive nail biting can have serious health implications, including stomach or intestinal infections, and may require treatment that addresses the physical and psychological factors involved.
| Characteristics | Values |
|---|---|
| Name | Onychophagy or onychophagia |
| Type | Oral compulsive habit |
| Prevalence | Very common, especially among children (25-35%) |
| Pathological forms | Impulse control disorder (DSM-IV-R), obsessive-compulsive and related disorders (DSM-5), "other specified behavioural and emotional disorders with onset usually occurring in childhood and adolescence" (ICD-10) |
| Co-occurring behaviours | Onychotillomania (nail picking), excoriation disorder (skin picking), dermatophagia (skin biting), trichotillomania (urge to pull out hair), bruxism (tooth clenching and grinding), pen chewing, cheek biting |
| Co-occurring disorders | Attention deficit hyperactivity disorder (ADHD), oppositional defiant disorder, separation anxiety disorder |
| Potential causes | Genetic components, underlying psychiatric conditions, perfectionism, boredom, frustration |
| Health risks | Ingesting bacteria that can lead to stomach or intestinal infection, distortion of the nail bed unit, ungual and oral infection, poor dental hygiene, chipped or notched teeth, inflamed gums |
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What You'll Learn
- Nail biting is a compulsive habit, also known as onychophagy or onychophagia
- It is a parafunctional activity, using the mouth for something other than speaking, eating or drinking
- It is very common, especially among children, of which 25-35% bite their nails
- It can be a source of guilt and shame, reducing quality of life and increasing stigmatisation
- It may be linked to perfectionism or a desire for stimulation when bored or frustrated
Nail biting is a compulsive habit, also known as onychophagy or onychophagia
Nail biting is often associated with feelings of guilt and shame in the nail biter, a reduced quality of life, and increased stigmatisation. It can also lead to stomach or intestinal infections, as well as dental issues such as chipped or notched teeth and inflamed gums. More pathological forms of nail biting are considered an impulse control disorder and are classified under obsessive-compulsive and related disorders.
Some researchers believe that nail biting may be linked to a person's tendency towards perfectionism or a desire for stimulation when bored or frustrated. It is also often associated with other body-focused repetitive behaviours such as nail picking, skin picking, skin biting, and hair pulling. In children, nail biting frequently co-occurs with attention deficit hyperactivity disorder and other psychiatric disorders.
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It is a parafunctional activity, using the mouth for something other than speaking, eating or drinking
Nail biting, also known as onychophagy or onychophagia, is an oral compulsive habit of biting one's fingernails. It is sometimes described as a parafunctional activity, which is the common use of the mouth for an activity other than speaking, eating, or drinking. Nail biting is very common, especially among children, of which 25–35% bite nails. It is often associated with other parafunctional activities such as bruxism (tooth clenching and grinding), pen chewing, and cheek biting.
Nail biting can be a source of guilt and shame for the individual, leading to a reduced quality of life and increased stigmatisation within family circles or at a societal level. It is often associated with other body-focused repetitive behaviours such as onychotillomania (nail picking), excoriation disorder (skin picking), dermatophagia (skin biting), and trichotillomania (the urge to pull out hair). These behaviours tend to coexist with nail biting and may be indicative of underlying psychiatric conditions.
In children, nail biting has been found to co-occur with attention deficit hyperactivity disorder (ADHD) in 75% of one psychiatrically referred cohort of nail biters. It has also been associated with other psychiatric disorders, including oppositional defiant disorder (36%) and separation anxiety disorder (21%). Researchers have also speculated that nail biting may be linked to a tendency towards perfectionism or a desire for stimulation when bored or frustrated.
Excessive nail biting can have negative health consequences, including the ingestion of bacteria that can lead to stomach or intestinal infections. It can also cause dental issues such as chipped or notched teeth and inflamed gums. Treatment for nail biting typically involves a multidisciplinary team that provides social, psychiatric, dermatologic, and dental care.
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It is very common, especially among children, of which 25-35% bite their nails
Nail biting, also known as onychophagy or onychophagia, is an oral compulsive habit of biting one's fingernails. It is very common, especially among children, of whom 25-35% are nail biters. Nail biting is sometimes described as a parafunctional activity, meaning the mouth is used for an activity other than speaking, eating or drinking.
Nail biting is often associated with feelings of guilt and shame, a reduced quality of life, and increased stigmatisation. It can also lead to dental issues, such as chipped or notched teeth and inflamed gums, as well as oral and intestinal infections. Other body-focused repetitive behaviours, such as skin picking and hair pulling, tend to coexist with nail biting.
In children, nail biting is often associated with attention deficit hyperactivity disorder (ADHD), with a 75% co-occurrence rate in one psychiatrically referred cohort of nail biters. It is also linked to other psychiatric disorders, including oppositional defiant disorder (36%) and separation anxiety disorder (21%). Nail biting may stem from an overall tendency towards perfectionism or a desire for stimulation when bored or frustrated.
More pathological forms of nail biting are considered an impulse control disorder in the DSM-IV-R and are classified under obsessive-compulsive and related disorders in the DSM-5. Treatment for excessive nail biting typically involves a multidisciplinary team that provides social, psychiatric, dermatologic, and dental care.
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It can be a source of guilt and shame, reducing quality of life and increasing stigmatisation
Excessive nail biting, also known as onychophagy or onychophagia, is a compulsive habit that can lead to feelings of guilt and shame. It is a common behaviour, especially among children, with 25-35% biting their nails. However, more pathological forms of nail biting are considered an impulse control disorder and are classified as obsessive-compulsive and related disorders. The practice can significantly impact an individual's quality of life, leading to stigmatisation within family circles and society at large.
Nail biting is often associated with other body-focused repetitive behaviours, such as onychotillomania (nail picking), excoriation disorder (skin picking), dermatophagia (skin biting), and trichotillomania (hair pulling). It is also linked to oral parafunctional activities like bruxism (tooth clenching and grinding), pen chewing, and cheek biting. In children, nail biting frequently co-occurs with attention deficit hyperactivity disorder (ADHD), with a 75% co-occurrence rate in one psychiatrically referred cohort. Other coexisting psychiatric disorders include oppositional defiant disorder (36%) and separation anxiety disorder (21%).
The habit can have negative consequences for dental hygiene, leading to chipped or notched teeth and inflamed gums. Additionally, nail biters may ingest bacteria that cause stomach or intestinal infections. Treatment for excessive nail biting typically involves a multidisciplinary approach, addressing social, psychiatric, dermatologic, and dental concerns.
The underlying causes of nail biting are multifaceted and can range from genetic factors to underlying psychiatric conditions. Researchers have also speculated that nail biting may be linked to a tendency towards perfectionism or a desire for stimulation when bored or frustrated. Regardless of the cause, excessive nail biting can be challenging to overcome and may require a comprehensive treatment plan that addresses both the physical and psychological aspects of the behaviour.
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It may be linked to perfectionism or a desire for stimulation when bored or frustrated
Excessive nail biting, also known as onychophagy or onychophagia, is a compulsive habit that can be linked to several factors, including perfectionism or a desire for stimulation when bored or frustrated.
Some researchers speculate that nail biting may be linked to an individual's tendency towards perfectionism or a need for stimulation. This means that individuals who engage in excessive nail biting may be seeking a way to cope with feelings of boredom or frustration, or they may be striving for a sense of perfection or control.
Nail biting is a common behaviour, especially among children, with 25-35% of them biting their nails. However, it can also be considered a pathological behaviour and is classified as an impulse control disorder in the DSM-IV-R and as an obsessive-compulsive disorder in the DSM-5. The ICD-10 classifies excessive nail biting as "other specified behavioural and emotional disorders with onset usually occurring in childhood and adolescence".
The behaviour can lead to feelings of guilt and shame, impacting an individual's quality of life and leading to stigmatisation within family circles or society. It is often associated with other body-focused repetitive behaviours such as nail picking, skin picking, skin biting, and hair pulling. Additionally, nail biters may experience dental issues such as chipped teeth and inflamed gums, as well as an increased risk of oral and intestinal infections due to the ingestion of bacteria.
Treating excessive nail biting often requires a multidisciplinary approach that addresses the underlying social, psychiatric, dermatological, and dental factors contributing to the behaviour.
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Frequently asked questions
Excessive nail biting is a chronic condition that is repetitive and compulsive in nature. It is generally seen in children and young adults.
There are multiple factors that play a role in the development of nail biting, ranging from genetic components to underlying psychiatric conditions. Some researchers also speculate that nail biting may stem from an overall tendency towards perfectionism or from a desire to seek stimulation when bored or frustrated.
Excessive nail biting can lead to stomach or intestinal infections, as well as oral infections. It can also cause dental issues, such as chipped or notched teeth and inflamed gums.
