
Nail-biting, or onychophagia, is a common habit, especially among children and young adults. It can be a challenging habit to break, but it is possible to grow healthy nails after years of biting them. Although there is no scientific proof that bitten nails grow faster, some sources suggest that the trauma caused by biting stimulates circulation in the nail bed, encouraging nail growth. Nails can take anywhere from three to six months to grow back completely after biting, depending on the severity of the damage. To help nails recover, it is important to keep them trimmed, care for the cuticles, and maintain a healthy and balanced diet.
| Characteristics | Values |
|---|---|
| Do bitten nails grow faster? | Biting nails can cause trauma to the nail, stimulating circulation in the nail bed and encouraging nail growth. |
| How long do bitten nails take to grow back? | Bitten nails take between three to six months to grow back, depending on the severity of the damage. |
| What are the negative consequences of nail biting? | Nail biting can cause teeth fractures, gum disease, stomach infections, damaged cuticles, chronic ingrown nails, dental problems, and jaw damage. |
| What are some tips to stop nail biting? | Identify triggers, seek outside help if necessary, keep your hands occupied, maintain a healthy and balanced diet, and use products like Builder Gel or Nutra Nail Stressed Nail Formula to strengthen nails and promote growth. |
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What You'll Learn

Nail biting can cause teeth fractures and gum disease
Nail biting can have several negative impacts on oral health, including damage to teeth and gums. While teeth are tougher than nails, over time, nail biting can cause significant damage to both. The friction of teeth grinding against nails can wear away the protective tooth enamel and cause teeth to crack or chip, leading to serious dental problems. Specifically, the incisors (upper and lower anterior teeth) are the most affected, with small microfractures occurring in the incisal edge (lower edge of the incisors).
The pressure exerted on the teeth when biting nails can also cause dental displacement and crowding, which may require orthodontic correction. Additionally, nail biting can introduce harmful bacteria from the hands into the mouth, increasing the risk of infections. This risk is heightened if you bite your nails after touching contaminated surfaces or if there are small cuts or abrasions in your mouth. These factors can lead to painful oral infections and gum diseases such as gingivitis or periodontitis.
The act of nail biting can also cause gum recession, exposing the roots of the teeth and making them more susceptible to sensitivity, decay, and infection. Furthermore, repeated nail biting can result in oral sores or ulcers, especially if the nails are jagged or if biting is done aggressively.
Nail biting is often associated with anxiety and stress and can lead to feelings of embarrassment about the appearance of nails and hands, affecting self-esteem and perpetuating a cycle of nail biting. Breaking this habit can be challenging, but it is not impossible. Seeking professional help, such as therapy or counseling, can be beneficial in addressing the underlying causes and developing effective stress management strategies.
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Biting nails can damage the matrix, leading to deformities
Biting your nails can have several negative consequences for your health and the appearance of your nails and teeth. One of the most significant issues is the potential damage to the matrix of the nail. The matrix is a layer within the nail structure responsible for nail growth and ensuring the nail grows in the correct shape. When you bite your nails, you risk damaging this matrix, which can lead to chronic issues such as ingrown nails and deformities.
Ingrown nails occur when the nail grows into the soft flesh surrounding it, causing pain and inflammation. This condition can become severe and may require medical attention if an infection develops. Deformities in nail shape can also occur due to matrix damage, resulting in misshapen nails that may grow in abnormal directions. This can be aesthetically displeasing and cause further complications, such as difficulty in nail care and hygiene.
Additionally, nail biting can lead to dental problems, including fractures, gum disease (gingivitis), and gum inflammation. The force applied during nail-biting can cause teeth to chip or fracture, requiring dental intervention. Furthermore, the bacteria and pathogens present in the mouth can lead to gum disease and inflammation, affecting oral health and potentially causing bad breath.
It is worth noting that some individuals report stronger nails after quitting nail-biting. The constant trauma of biting may stimulate nail growth and lead to stronger nails over time. However, this does not negate the potential risks associated with nail-biting, and it is generally recommended to break the habit to maintain optimal nail and oral health.
If you are struggling to stop nail-biting, there are various strategies you can employ. Maintaining a healthy and balanced diet, staying hydrated, and using nail-strengthening treatments can all contribute to healthier nails. Additionally, keeping your hands occupied with stress toys, fidget spinners, or play dough can help redirect the habit. In some cases, underlying mental health issues such as stress, anxiety, or obsessive-compulsive disorder may contribute to nail-biting, and seeking professional help can be beneficial.
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Stop biting nails to see new growth in a few days
Biting your nails can be a hard habit to break, but it's not impossible. While nail-biting doesn't cause permanent damage to your nails, it can lead to stomach infections, damaged cuticles, chronic ingrown nails, and dental problems. It can also expose the delicate skin below your nails, leaving it vulnerable to bacteria and pathogens in your mouth.
So, how do you stop biting your nails? Well, it starts with self-discipline and addressing the underlying causes, such as stress, anxiety, or boredom. Here are some tips to help you quit:
- Identify your triggers: Understand what situations or emotions lead you to bite your nails. If you can, try to avoid or minimise these triggers.
- Find alternatives: Keep your hands occupied with stress toys, fidget spinners, playdough, or jewellery that doubles as a fidget ring.
- Use protective products: Apply Builder Gel or clear nail polish to your nails. This acts as a barrier and promotes nail growth and strength.
- Maintain nail hygiene: Keep your nails trimmed, take care of your cuticles, and maintain a healthy and balanced diet. You can also use cuticle oils, such as jojoba oil, to moisturise your nails and cuticles.
- Stay hydrated: Drinking plenty of water contributes to healthy nail growth.
- Seek professional help: If you feel that nail-biting is a symptom of a more serious problem, such as OCD, anxiety, or ADHD, consider seeking advice from a doctor or mental health professional.
Remember, it's never too late to quit nail-biting. With patience and perseverance, you can break free from this habit and achieve strong, healthy nails. You may not notice the growth day-to-day, but taking photos of your nails regularly can help you see your progress. Within a few days of stopping, you'll begin to see new nail growth, and your nails will continue to heal and recover over time.
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Biting nails may indicate mental health disorders
Biting your nails, also known as onychophagia, is a very common habit, especially among children and young adults. While it may seem like a harmless nervous tic, it can have negative consequences for your health and may even indicate underlying mental health issues.
Nail biting can cause damage to the matrix, a layer in your nails responsible for healthy growth and shape maintenance. This can lead to chronic ingrown nails and deformities. Additionally, exposing the delicate skin beneath the nail can leave it vulnerable to bacteria and pathogens in the mouth, potentially causing gastro-intestinal infections and dental issues such as gum disease and tooth fractures.
While nail biting may start as a harmless habit, it can develop into a severe, long-term problem. Onychophagia is characterised by chronic, seemingly uncontrollable nail biting that is destructive to the nails and surrounding tissue. It is the most common body-focused repetitive behaviour (BFRB) and is related to obsessive-compulsive disorders. People with BFRBs may also exhibit other behaviours such as skin picking and hair pulling.
Nail biting is frequently associated with anxiety, as the act of chewing on nails reportedly relieves stress, tension, or boredom. It can also be a coping mechanism in response to feeling nervous, lonely, or hungry. Some researchers speculate that nail biting may stem from a tendency towards perfectionism or a desire for stimulation when bored or frustrated. Additionally, there may be a genetic link, with some individuals inheriting a tendency towards BFRBs and higher rates of mood and anxiety disorders in their families.
If you are struggling to stop biting your nails, it may be helpful to identify your triggers and establish replacement behaviours. This could include squeezing a stress ball, playing with a fidget toy, or chewing gum. Keeping your nails trimmed and maintaining a healthy diet can also aid in breaking the habit. If you are unable to stop on your own, cognitive behavioural therapy (CBT) and acceptance and commitment therapy (ACT) can help address the underlying psychological causes.
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Tips to stop biting nails and improve nail health
Biting your nails can be a difficult habit to break, but it's not impossible! Here are some tips to stop biting your nails and improve the health of your nails:
Identify triggers and develop a plan:
First, try to identify what triggers your nail-biting. Are there certain situations, emotions, or physical factors that lead you to bite your nails? By understanding your triggers, you can develop a plan to avoid or manage those triggers effectively. For example, if you tend to bite your nails when you're feeling bored or anxious, try finding alternative ways to channel that energy, like squeezing a stress ball or fiddling with a pen.
Gradual approach:
Instead of going cold turkey, consider taking a gradual approach. Start by choosing one nail, such as your thumb, and commit to not biting it for a week. Once you've successfully broken the habit for that particular nail, move on to another nail or an entire hand. Gradually, you'll train yourself to stop biting your nails altogether.
Keep nails trimmed and maintained:
Keeping your nails trimmed short can help reduce the temptation to bite them. There's less nail to grab onto, making it less satisfying to bite. Additionally, maintaining your nails by taking care of your cuticles and the skin around your nails is crucial. You can also apply a bitter-tasting nail polish, which is safe but discourages nail-biting due to its unpleasant flavor.
Wear gloves or use stickers:
If you can't access your nails, you can't bite them! Wearing gloves or using stickers designed to cover nails can be a simple yet effective solution. This method can be especially useful during times when you know you're more likely to bite your nails.
Improve nail health:
Taking care of your nail health can also help reduce the urge to bite your nails. Consider taking biotin supplements, as research has shown that 2.5 milligrams of biotin daily can reduce nail breakage and improve overall nail health. Additionally, using nail hardeners sparingly can strengthen your nails, but be sure to avoid prolonged use as they can break down your nails over time. Opt for nontoxic or water-based nail polishes instead of glue-on nails and toxic polishes, as these can increase the risk of breakage.
Remember, breaking any habit takes time and effort. Be patient with yourself, and don't be afraid to seek professional help if you feel like you need additional support.
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Frequently asked questions
Yes, bitten nails can grow back and fully recover, as long as the nail bed remains intact. However, if the tissue beneath the nail plate is damaged, nails are likely to grow back deformed.
Nails typically grow around 0.7mm per week, but this can vary from person to person. It may take between three to six months for bitten nails to fully grow back, depending on the severity of the damage.
Here are some tips to help you stop biting your nails:
- Identify your triggers and do what you can to avoid them.
- Keep your hands occupied with a stress toy, fidget spinner, playdough, or a fidget ring.
- Get fake nails, which can act as a barrier and also promote nail growth.
- Keep your nails well-maintained with proper trimming, moisturising, and protective products.











































