{"id":147439,"date":"2025-08-06T19:24:30","date_gmt":"2025-08-06T19:24:30","guid":{"rendered":"https:\/\/nailknowledge.org\/?post_type=epkb_post_type_1&#038;p=147439"},"modified":"2025-08-06T19:59:46","modified_gmt":"2025-08-06T19:59:46","slug":"onychophagia-causes-risks-treatment-for-chronic-nail-biting","status":"publish","type":"epkb_post_type_1","link":"https:\/\/nailknowledge.org\/es\/nail-knowledge-base\/onychophagia-causes-risks-treatment-for-chronic-nail-biting","title":{"rendered":"Onychophagia"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Onychophagia<\/h2>\n\n\n\n<p><strong>Onychophagia<\/strong> <em>(pronounced on\u2011i\u2011ko\u2011FAY\u2011jee\u2011ah)<\/em> is the medical term for chronic nail biting \u2014 a body\u2011focused repetitive behaviour (BFRB) that involves chewing the fingernails, toenails, and sometimes the surrounding skin. While occasional nail biting is common and often harmless, onychophagia refers to a persistent habit that can lead to physical damage and emotional distress.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"eager\" fetchpriority=\"high\" decoding=\"async\" width=\"828\" height=\"866\" src=\"https:\/\/nailknowledge.org\/wp-content\/uploads\/2020\/12\/nail-biting.jpg\" alt=\"Nail Biting - Onychophagia\" class=\"wp-image-31977\" srcset=\"https:\/\/nailknowledge.org\/wp-content\/uploads\/2020\/12\/nail-biting.jpg 828w, https:\/\/nailknowledge.org\/wp-content\/uploads\/2020\/12\/nail-biting-600x628.jpg 600w, https:\/\/nailknowledge.org\/wp-content\/uploads\/2020\/12\/nail-biting-287x300.jpg 287w, https:\/\/nailknowledge.org\/wp-content\/uploads\/2020\/12\/nail-biting-768x803.jpg 768w, https:\/\/nailknowledge.org\/wp-content\/uploads\/2020\/12\/nail-biting-96x100.jpg 96w\" sizes=\"auto, (max-width: 828px) 100vw, 828px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">How Onychophagia Is Classified<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Medical Category:<\/strong> Impulse control disorder \/ BFRB<\/li>\n\n\n\n<li><strong>Related Conditions:<\/strong> Onychotillomania (compulsive nail picking), dermatophagia (skin biting), trichotillomania (hair pulling)<\/li>\n\n\n\n<li><strong>Diagnostic Context:<\/strong> Recognised in the <em>Diagnostic and Statistical Manual of Mental Disorders<\/em> (DSM\u20115) under <em>Other Specified Obsessive\u2013Compulsive and Related Disorders<\/em><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Causes and Triggers of Onychophagia (Chronic Nail Biting)<\/h2>\n\n\n\n<p>Onychophagia can develop at any age but often begins in childhood.<br>Common contributing factors include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Psychological triggers:<\/strong> Stress, anxiety, boredom, or perfectionism<\/li>\n\n\n\n<li><strong>Learned behaviour:<\/strong> Observing <a href=\"https:\/\/nailknowledge.org\/es\/blog\/morderse-las-unas-y-la-piel\/\"  data-wpil-monitor-id=\"216\">morderse las u\u00f1as<\/a> in parents, siblings, or peers<\/li>\n\n\n\n<li><strong>Neurodevelopmental links:<\/strong> Higher prevalence in individuals with ADHD, OCD, or anxiety disorders<\/li>\n\n\n\n<li><strong>Sensory reinforcement:<\/strong> The physical sensation of biting may provide temporary comfort or relief<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Health Risks and Complications of Onychophagia<\/h2>\n\n\n\n<p>Persistent onychophagia can result in:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Nail plate deformation and slowed growth<\/li>\n\n\n\n<li>Damage to cuticles and periungual skin<\/li>\n\n\n\n<li>Painful hangnails and inflammation<\/li>\n\n\n\n<li>Increased risk of bacterial, viral, or <a href=\"https:\/\/nailknowledge.org\/es\/blog\/el-hongo-de-la-una\/\"  data-wpil-monitor-id=\"217\">infecciones f\u00fangicas<\/a><\/li>\n\n\n\n<li>Dental damage including chipped teeth and enamel wear<\/li>\n\n\n\n<li>Transfer of pathogens from fingers to mouth, potentially causing illness<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Management and Treatment<\/h2>\n\n\n\n<p>Breaking the cycle of onychophagia often requires a combination of strategies:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Behavioural interventions:<\/strong> Habit Reversal Training (HRT) and stimulus control<\/li>\n\n\n\n<li><strong>Stress management:<\/strong> Mindfulness, relaxation exercises, or therapy to address underlying anxiety<\/li>\n\n\n\n<li><strong>Physical deterrents:<\/strong> Bitter\u2011tasting nail coatings, gloves, or adhesive nail covers<\/li>\n\n\n\n<li><strong>Professional nail care:<\/strong> Regular manicures to protect nails and encourage maintenance<\/li>\n\n\n\n<li><strong>Medical or psychological support:<\/strong> For severe or compulsive cases, referral to a GP, dermatologist, or mental health professional<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Prognosis<\/h2>\n\n\n\n<p>With consistent management, most people can significantly reduce or eliminate the habit. However, relapse is common, especially during periods of stress. Ongoing self\u2011monitoring and maintenance strategies are recommended.<\/p>\n\n\n\n<p><strong>See also:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/nailknowledge.org\/es\/base-de-conocimientos-sobre-unas\/morderse-las-unas-2\/\">Morderse las u\u00f1as<\/a><\/li>\n\n\n\n<li><a>Onychotillomania<\/a><\/li>\n<\/ul>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>Onychophagia Onychophagia (pronounced on\u2011i\u2011ko\u2011FAY\u2011jee\u2011ah) is the medical term for chronic nail biting \u2014 a body\u2011focused repetitive behaviour (BFRB) that involves chewing the fingernails, toenails, and sometimes the surrounding skin. While occasional nail biting is common and often harmless, onychophagia refers to a persistent habit that can lead to physical damage and emotional distress. How Onychophagia [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":147445,"template":"","meta":{"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"epkb_post_type_1_category":[56],"epkb_post_type_1_tag":[],"class_list":{"0":"post-147439","1":"epkb_post_type_1","2":"type-epkb_post_type_1","3":"status-publish","4":"has-post-thumbnail","6":"epkb_post_type_1_category-nail-conditions","7":"entry"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Onychophagia - NailKnowledge<\/title>\n<meta name=\"description\" content=\"Learn what onychophagia is, its causes, health risks, and proven treatments to stop chronic nail biting and restore healthy nails.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/nailknowledge.org\/es\/base-de-conocimientos-sobre-unas\/onychophagia-causes-risks-treatment-for-chronic-nail-biting\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Onychophagia - 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