{"id":186,"date":"2025-08-02T05:57:33","date_gmt":"2025-08-02T05:57:33","guid":{"rendered":"https:\/\/dermacab.net\/?page_id=186"},"modified":"2025-08-02T20:52:55","modified_gmt":"2025-08-02T20:52:55","slug":"alopecies-mecaniques-et-chimiques","status":"publish","type":"page","link":"https:\/\/dermacab.net\/index.php\/dermatologie\/maladies-des-cheveux-et-du-cuir-chevelu\/alopecies-non-cicatricielles\/alopecies-mecaniques-et-chimiques\/","title":{"rendered":"\u26a0\ufe0f Alop\u00e9cies m\u00e9caniques et chimiques"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\ud83e\uddec D\u00e9finition<\/h2>\n\n\n\n<p>Les alop\u00e9cies m\u00e9caniques et chimiques regroupent des pertes de cheveux provoqu\u00e9es par <strong>des traumatismes r\u00e9p\u00e9t\u00e9s<\/strong> physiques ou chimiques sur le cuir chevelu. Elles sont initialement <strong>non cicatricielles<\/strong>, mais peuvent \u00e9voluer vers des formes <strong>cicatricielles irr\u00e9versibles<\/strong> si les agressions persistent.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udd0d Alop\u00e9cies m\u00e9caniques<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">\u27a4 Causes courantes :<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Coiffures traumatiques<\/strong> : tresses serr\u00e9es, chignons, nattes plaqu\u00e9es, extensions (alop\u00e9cie de traction)<\/li>\n\n\n\n<li><strong>Frictions r\u00e9p\u00e9t\u00e9es<\/strong> : casque, foulard, oreiller rugueux<\/li>\n\n\n\n<li><strong>Manipulations excessives<\/strong> : brossages agressifs, tiraillements<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\u27a4 Clinique :<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Zones affect\u00e9es : <strong>bords fronto-temporaux<\/strong>, vertex, zones de pression<\/li>\n\n\n\n<li>Cheveux cass\u00e9s, repousse courte, rar\u00e9faction progressive<\/li>\n\n\n\n<li>Trichoscopie : miniaturisation folliculaire, follicules vides<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\u27a4 \u00c9volution :<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>R\u00e9versible si arr\u00eat pr\u00e9coce des agressions<\/li>\n\n\n\n<li>Risque de passage \u00e0 l\u2019alop\u00e9cie cicatricielle si chronique<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83e\uddea Alop\u00e9cies chimiques<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">\u27a4 Produits impliqu\u00e9s :<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>D\u00e9frisants chimiques<\/strong> (hydroxyde de sodium, thioglycolates)<\/li>\n\n\n\n<li><strong>Colorations capillaires agressives<\/strong>, d\u00e9colorations r\u00e9p\u00e9t\u00e9es<\/li>\n\n\n\n<li><strong>Permanentes<\/strong> ou produits irritants mal utilis\u00e9s<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\u27a4 M\u00e9canisme :<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Irritation ou br\u00fblure du cuir chevelu \u2192 inflammation folliculaire<\/li>\n\n\n\n<li>Destruction du bulbe pilaire en cas de br\u00fblure profonde<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\u27a4 Manifestations :<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Sensation de br\u00fblure ou douleur apr\u00e8s application<\/li>\n\n\n\n<li>Chute de cheveux brutale dans les jours suivants<\/li>\n\n\n\n<li>\u00c9ryth\u00e8me, cro\u00fbtes, parfois pustules<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83e\uddea Diagnostic<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Interrogatoire cibl\u00e9 sur les pratiques capillaires<\/li>\n\n\n\n<li>Trichoscopie : dommages folliculaires, inflammation, points noirs<\/li>\n\n\n\n<li>Parfois biopsie si suspicion d\u2019alop\u00e9cie cicatricielle<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udc8a Prise en charge<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Arr\u00eat imm\u00e9diat<\/strong> des pratiques ou produits agressifs<\/li>\n\n\n\n<li>Traitement anti-inflammatoire topique (cortico\u00efdes) si \u00e9ryth\u00e8me ou prurit<\/li>\n\n\n\n<li><strong>Minoxidil topique<\/strong> en cas de repousse lente<\/li>\n\n\n\n<li><strong>PRP<\/strong>, m\u00e9soth\u00e9rapie ou LED en cas de repousse alt\u00e9r\u00e9e<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udd04 Pronostic<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>R\u00e9versible dans la majorit\u00e9 des cas<\/strong> si prise en charge rapide<\/li>\n\n\n\n<li>S\u00e9quelles d\u00e9finitives possibles si atteinte cicatricielle \u00e9tablie<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udccd Prise en charge au Cabinet du Dr Hadi HAKIM \u2013 Dakar<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Diagnostic clinique et trichoscopique expert<\/li>\n\n\n\n<li>\u00c9ducation th\u00e9rapeutique sur les pratiques capillaires saines<\/li>\n\n\n\n<li>Suivi personnalis\u00e9, avec prise en charge m\u00e9dicale et esth\u00e9tique<\/li>\n<\/ul>\n\n\n\n<p>\ud83d\udcde <strong>+221 33 821 31 22<\/strong><br>\ud83d\udcac <strong>WhatsApp professionnel disponible<\/strong><br>\ud83d\udccd <em>Cabinet de Dermatologie et Trichologie \u2013 Dakar<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\ud83e\uddec D\u00e9finition Les alop\u00e9cies m\u00e9caniques et chimiques regroupent des pertes de cheveux provoqu\u00e9es par des traumatismes r\u00e9p\u00e9t\u00e9s physiques ou chimiques sur le cuir chevelu. Elles sont initialement non cicatricielles, mais peuvent \u00e9voluer vers des formes cicatricielles irr\u00e9versibles si les agressions persistent. \ud83d\udd0d Alop\u00e9cies m\u00e9caniques \u27a4 Causes courantes : \u27a4 Clinique : \u27a4 \u00c9volution : \ud83e\uddea [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":212,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-186","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/dermacab.net\/index.php\/wp-json\/wp\/v2\/pages\/186","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dermacab.net\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/dermacab.net\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/dermacab.net\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dermacab.net\/index.php\/wp-json\/wp\/v2\/comments?post=186"}],"version-history":[{"count":1,"href":"https:\/\/dermacab.net\/index.php\/wp-json\/wp\/v2\/pages\/186\/revisions"}],"predecessor-version":[{"id":187,"href":"https:\/\/dermacab.net\/index.php\/wp-json\/wp\/v2\/pages\/186\/revisions\/187"}],"up":[{"embeddable":true,"href":"https:\/\/dermacab.net\/index.php\/wp-json\/wp\/v2\/pages\/212"}],"wp:attachment":[{"href":"https:\/\/dermacab.net\/index.php\/wp-json\/wp\/v2\/media?parent=186"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}