{"id":147437,"date":"2025-08-06T19:12:09","date_gmt":"2025-08-06T19:12:09","guid":{"rendered":"https:\/\/nailknowledge.org\/?post_type=glossary&#038;p=147437"},"modified":"2025-08-06T19:48:57","modified_gmt":"2025-08-06T19:48:57","slug":"onychophagia","status":"publish","type":"glossary","link":"https:\/\/nailknowledge.org\/vi\/glossary\/onychophagia","title":{"rendered":"Onychophagia"},"content":{"rendered":"<p><strong>Onychophagia<\/strong> <em>(pronounced on\u2011i\u2011ko\u2011FAY\u2011jee\u2011ah)<\/em><br><strong>S\u1ef1 \u0111\u1ecbnh ngh\u0129a:<\/strong><br>A chronic habit of biting one\u2019s fingernails or toenails, often involving chewing of the surrounding skin. It is classified as a body\u2011focused repetitive behaviour (BFRB) and, in some cases, a form of onychotillomania (compulsive nail picking or manipulation).<\/p>\n\n\n\n<p><strong>Causes &amp; Triggers:<\/strong><br>Onychophagia can be linked to psychological factors such as stress, anxiety, boredom, or perfectionism. It may also be associated with mental health conditions including obsessive\u2011compulsive disorder (OCD), attention deficit hyperactivity disorder (ADHD), and certain anxiety disorders. Learned behaviour from family members is also common.<\/p>\n\n\n\n<p><strong>Risks &amp; Consequences:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Nail plate deformity and stunted growth<\/li>\n\n\n\n<li>Damage to cuticles and nail folds<\/li>\n\n\n\n<li>Increased risk of bacterial, viral, and fungal infections<\/li>\n\n\n\n<li>Dental problems such as chipped teeth and enamel wear<\/li>\n\n\n\n<li>Transmission of germs from fingers to mouth<\/li>\n<\/ul>\n\n\n\n<p><strong>Management &amp; Treatment:<\/strong><br>Breaking the habit typically involves behavioural approaches such as Habit Reversal Training (HRT), stress\u2011reduction techniques, use of deterrent products (e.g., bitter\u2011tasting nail coatings), and professional nail care. In severe cases, psychological therapy may be indicated.<\/p>\n\n\n\n<p><strong>Etymology:<\/strong><br>From the Greek <em>onycho<\/em> (\u201cnail\u201d) and <em>phagia<\/em> (\u201cto eat\u201d or \u201cconsume\u201d).<\/p>","protected":false},"excerpt":{"rendered":"<p>Onychophagia (pronounced on\u2011i\u2011ko\u2011FAY\u2011jee\u2011ah)Definition:A chronic habit of biting one\u2019s fingernails or toenails, often involving chewing of the surrounding skin. It is classified as a body\u2011focused repetitive behaviour (BFRB) and, in some cases, a form of onychotillomania (compulsive nail picking or manipulation). Causes &amp; Triggers:Onychophagia can be linked to psychological factors such as stress, anxiety, boredom, or [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":147445,"menu_order":0,"template":"","meta":{"_yoast_wpseo_focuskw":"","_yoast_wpseo_metadesc":"","_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":""},"class_list":{"0":"post-147437","1":"glossary","2":"type-glossary","3":"status-publish","4":"has-post-thumbnail","6":"entry"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Onychophagia - NailKnowledge<\/title>\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\/vi\/tu-dien-thuat-ngu\/onychophagia\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Onychophagia - NailKnowledge\" \/>\n<meta property=\"og:description\" content=\"Onychophagia (pronounced on\u2011i\u2011ko\u2011FAY\u2011jee\u2011ah)Definition:A chronic habit of biting one\u2019s fingernails or toenails, often involving chewing of the surrounding skin. 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