{"id":4265,"date":"2026-07-11T18:13:00","date_gmt":"2026-07-11T17:13:00","guid":{"rendered":"https:\/\/www.tuasaude.com\/es\/news\/?p=4265"},"modified":"2026-07-11T00:41:40","modified_gmt":"2026-07-10T23:41:40","slug":"psoriasis-o-dermatitis-como-distinguir-las-placas-en-la-piel-y-que-las-desencadena","status":"publish","type":"post","link":"https:\/\/www.tuasaude.com\/es\/news\/2026\/07\/11\/psoriasis-o-dermatitis-como-distinguir-las-placas-en-la-piel-y-que-las-desencadena\/","title":{"rendered":"Psoriasis o dermatitis: c\u00f3mo distinguir las placas en la piel y qu\u00e9 las desencadena"},"content":{"rendered":"\n<!-- ===== TUA SA\u00daDE - CAJA DESTACADOS INICIO ===== -->\n<div id=\"ts-teaser-psoriasis-dermatitis\">\n  <style>\n    #ts-teaser-psoriasis-dermatitis * { box-sizing: border-box; }\n    #ts-teaser-psoriasis-dermatitis {\n      background: #ffffff;\n      border: 1px solid #e2e8ee;\n      border-left: 6px solid #1c86c4;\n      border-radius: 12px;\n      padding: 22px 22px 22px 20px;\n      max-width: 100%;\n      font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n      color: #1a3a4a;\n      margin: 20px 0;\n    }\n    #ts-teaser-psoriasis-dermatitis .ts-head-row {\n      display: flex;\n      align-items: center;\n      gap: 10px;\n      margin-bottom: 16px;\n    }\n    #ts-teaser-psoriasis-dermatitis .ts-eyebrow {\n      color: #1c86c4;\n      font-size: 14px;\n      font-weight: 700;\n      text-transform: uppercase;\n      letter-spacing: 0.05em;\n    }\n    #ts-teaser-psoriasis-dermatitis .ts-rows {\n      display: flex;\n      flex-direction: column;\n      gap: 12px;\n    }\n    #ts-teaser-psoriasis-dermatitis .ts-row {\n      display: flex;\n      align-items: flex-start;\n      gap: 10px;\n      font-size: 15px;\n      line-height: 1.5;\n    }\n    #ts-teaser-psoriasis-dermatitis .ts-arrow {\n      flex: 0 0 auto;\n      color: #e63b3b;\n      font-weight: 700;\n      font-size: 15px;\n      margin-top: 1px;\n    }\n    #ts-teaser-psoriasis-dermatitis .ts-highlight {\n      color: #1c86c4;\n      font-weight: 600;\n    }\n  <\/style>\n  <div class=\"ts-head-row\">\n    <svg width=\"26\" height=\"26\" viewBox=\"0 0 30 30\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" aria-hidden=\"true\">\n      <circle cx=\"15\" cy=\"15\" r=\"14\" fill=\"#1c86c4\"\/>\n      <rect x=\"12.5\" y=\"6\" width=\"5\" height=\"18\" rx=\"1.5\" fill=\"#ffffff\"\/>\n      <rect x=\"6\" y=\"12.5\" width=\"18\" height=\"5\" rx=\"1.5\" fill=\"#ffffff\"\/>\n    <\/svg>\n    <span class=\"ts-eyebrow\">Lo que ver\u00e1s<\/span>\n  <\/div>\n  <div class=\"ts-rows\">\n    <div class=\"ts-row\"><span class=\"ts-arrow\">\u203a<\/span><span>Cu\u00e1ntos d\u00edas de diferencia hay en <span class=\"ts-highlight\">la velocidad<\/span> con la que se renueva tu piel en cada caso<\/span><\/div>\n    <div class=\"ts-row\"><span class=\"ts-arrow\">\u203a<\/span><span>El detalle en <span class=\"ts-highlight\">el borde de la placa<\/span> que m\u00e1s ayuda a diferenciarlas a simple vista<\/span><\/div>\n    <div class=\"ts-row\"><span class=\"ts-arrow\">\u203a<\/span><span>Por qu\u00e9 una <span class=\"ts-highlight\">pica de noche<\/span> y la otra da m\u00e1s quemaz\u00f3n que picor<\/span><\/div>\n    <div class=\"ts-row\"><span class=\"ts-arrow\">\u203a<\/span><span>Las zonas del cuerpo que <span class=\"ts-highlight\">delatan cu\u00e1l es cu\u00e1l<\/span><\/span><\/div>\n  <\/div>\n<\/div>\n<!-- ===== TUA SA\u00daDE - CAJA DESTACADOS FIN ===== -->\n\n\n\n<p class=\"wp-block-paragraph\">La <strong>psoriasis<\/strong> y la dermatitis son dos de las afecciones de la piel m\u00e1s frecuentes, y tambi\u00e9n de las m\u00e1s confundidas. Ambas producen zonas rojas, descamadas y molestas que a primera vista parecen iguales. Sin embargo, tienen causas distintas y se tratan de forma diferente, as\u00ed que distinguirlas importa. Hay se\u00f1ales bastante claras que ayudan a orientarse, aunque solo el dermat\u00f3logo puede confirmar el diagn\u00f3stico. Conocerlas evita confusiones y tratamientos equivocados.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u00bfQu\u00e9 son la psoriasis y la dermatitis?<\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" width=\"1024\" height=\"572\" src=\"https:\/\/www.tuasaude.com\/es\/news\/wp-content\/uploads\/2026\/07\/magnific_section-1-suggested-title_UyxlLrGwny-1024x572.png\" alt=\"\" class=\"wp-image-4461\" style=\"aspect-ratio:1.7902802819209966;width:1170px;height:auto\" srcset=\"https:\/\/www.tuasaude.com\/es\/news\/wp-content\/uploads\/2026\/07\/magnific_section-1-suggested-title_UyxlLrGwny-1024x572.png 1024w, https:\/\/www.tuasaude.com\/es\/news\/wp-content\/uploads\/2026\/07\/magnific_section-1-suggested-title_UyxlLrGwny-300x167.png 300w, https:\/\/www.tuasaude.com\/es\/news\/wp-content\/uploads\/2026\/07\/magnific_section-1-suggested-title_UyxlLrGwny-768x429.png 768w, https:\/\/www.tuasaude.com\/es\/news\/wp-content\/uploads\/2026\/07\/magnific_section-1-suggested-title_UyxlLrGwny-750x419.png 750w, https:\/\/www.tuasaude.com\/es\/news\/wp-content\/uploads\/2026\/07\/magnific_section-1-suggested-title_UyxlLrGwny-1140x636.png 1140w, https:\/\/www.tuasaude.com\/es\/news\/wp-content\/uploads\/2026\/07\/magnific_section-1-suggested-title_UyxlLrGwny.png 1376w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Infograf\u00eda comparativa sobre psoriasis y dermatitis que detalla diferencias, s\u00edntomas, zonas afectadas, factores desencadenantes y consejos de cuidado cut\u00e1neo.<\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">La <strong>psoriasis<\/strong> es una enfermedad inflamatoria de origen inmunitario. El sistema de defensa acelera la renovaci\u00f3n de la piel, que en lugar de tardar semanas lo hace en pocos d\u00edas, acumulando c\u00e9lulas en la superficie.<\/p>\n\n\n\n<!-- ===== TUA SA\u00daDE - WIDGET CUERPO INICIO ===== -->\n<div id=\"ts-widget-velocidad-renovacion\">\n  <style>\n    #ts-widget-velocidad-renovacion * { box-sizing: border-box; }\n    #ts-widget-velocidad-renovacion {\n      background: #ffffff;\n      border: 1px solid #e2e8ee;\n      border-radius: 16px;\n      padding: 22px 20px;\n      max-width: 100%;\n      font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n      color: #1a3a4a;\n      margin: 20px 0;\n    }\n    #ts-widget-velocidad-renovacion .ts-eyebrow {\n      color: #1c86c4;\n      font-size: 13px;\n      font-weight: 700;\n      text-transform: uppercase;\n      letter-spacing: 0.05em;\n      display: block;\n      margin-bottom: 6px;\n    }\n    #ts-widget-velocidad-renovacion .ts-title {\n      font-size: 19px;\n      font-weight: 700;\n      margin: 0 0 10px;\n      color: #1a3a4a;\n    }\n    #ts-widget-velocidad-renovacion .ts-intro {\n      font-size: 14.5px;\n      line-height: 1.55;\n      color: #3d5a68;\n      margin: 0 0 18px;\n    }\n    #ts-widget-velocidad-renovacion .ts-track-block {\n      margin-bottom: 18px;\n    }\n    #ts-widget-velocidad-renovacion .ts-track-label {\n      font-size: 13.5px;\n      font-weight: 700;\n      color: #1a3a4a;\n      margin-bottom: 8px;\n      display: flex;\n      justify-content: space-between;\n    }\n    #ts-widget-velocidad-renovacion .ts-days {\n      display: flex;\n      flex-wrap: wrap;\n      gap: 3px;\n    }\n    #ts-widget-velocidad-renovacion .ts-day {\n      width: 14px;\n      height: 14px;\n      border-radius: 3px;\n      flex: 0 0 auto;\n    }\n    #ts-widget-velocidad-renovacion .ts-day-normal {\n      background: #1c86c4;\n    }\n    #ts-widget-velocidad-renovacion .ts-day-pso {\n      background: #e63b3b;\n    }\n    #ts-widget-velocidad-renovacion .ts-note {\n      background: #f4f8fb;\n      border-radius: 10px;\n      padding: 12px 14px;\n      font-size: 13px;\n      line-height: 1.5;\n      color: #3d5a68;\n    }\n    #ts-widget-velocidad-renovacion .ts-footer {\n      margin-top: 14px;\n      font-size: 11.5px;\n      color: #7a92a0;\n    }\n  <\/style>\n  <span class=\"ts-eyebrow\">La velocidad, en d\u00edas reales<\/span>\n  <h4 class=\"ts-title\">Cu\u00e1nto tarda tu piel en renovarse en cada caso<\/h4>\n  <p class=\"ts-intro\">Cada cuadrito representa un d\u00eda. La diferencia visual explica por qu\u00e9 se acumulan tantas c\u00e9lulas de golpe.<\/p>\n  <div class=\"ts-track-block\">\n    <div class=\"ts-track-label\"><span>Piel normal<\/span><span>~28 d\u00edas<\/span><\/div>\n    <div class=\"ts-days\">\n      <div class=\"ts-day ts-day-normal\"><\/div><div class=\"ts-day ts-day-normal\"><\/div><div class=\"ts-day ts-day-normal\"><\/div><div class=\"ts-day ts-day-normal\"><\/div><div class=\"ts-day ts-day-normal\"><\/div><div class=\"ts-day ts-day-normal\"><\/div><div class=\"ts-day ts-day-normal\"><\/div><div class=\"ts-day ts-day-normal\"><\/div><div class=\"ts-day ts-day-normal\"><\/div><div class=\"ts-day ts-day-normal\"><\/div><div class=\"ts-day ts-day-normal\"><\/div><div class=\"ts-day ts-day-normal\"><\/div><div class=\"ts-day ts-day-normal\"><\/div><div class=\"ts-day ts-day-normal\"><\/div><div class=\"ts-day ts-day-normal\"><\/div><div class=\"ts-day ts-day-normal\"><\/div><div class=\"ts-day ts-day-normal\"><\/div><div class=\"ts-day ts-day-normal\"><\/div><div class=\"ts-day ts-day-normal\"><\/div><div class=\"ts-day ts-day-normal\"><\/div><div class=\"ts-day ts-day-normal\"><\/div><div class=\"ts-day ts-day-normal\"><\/div><div class=\"ts-day ts-day-normal\"><\/div><div class=\"ts-day ts-day-normal\"><\/div><div class=\"ts-day ts-day-normal\"><\/div><div class=\"ts-day ts-day-normal\"><\/div><div class=\"ts-day ts-day-normal\"><\/div><div class=\"ts-day ts-day-normal\"><\/div>\n    <\/div>\n  <\/div>\n  <div class=\"ts-track-block\">\n    <div class=\"ts-track-label\"><span>Piel con psoriasis<\/span><span>~4 d\u00edas<\/span><\/div>\n    <div class=\"ts-days\">\n      <div class=\"ts-day ts-day-pso\"><\/div><div class=\"ts-day ts-day-pso\"><\/div><div class=\"ts-day ts-day-pso\"><\/div><div class=\"ts-day ts-day-pso\"><\/div>\n    <\/div>\n  <\/div>\n  <div class=\"ts-note\">Con tan poco tiempo, las c\u00e9lulas ni siquiera terminan de madurar antes de llegar a la superficie. Se amontonan todav\u00eda &#8220;crudas&#8221;, y ese amontonamiento es justo lo que se ve como escamas plateadas.<\/div>\n  <p class=\"ts-footer\">Gu\u00eda orientativa \u00b7 no sustituye el diagn\u00f3stico de un dermat\u00f3logo<\/p>\n<\/div>\n<!-- ===== TUA SA\u00daDE - WIDGET CUERPO FIN ===== -->\n\n\n\n<p class=\"wp-block-paragraph\">La <strong>dermatitis<\/strong>, o eccema, es tambi\u00e9n una inflamaci\u00f3n de la piel, pero se relaciona con una barrera cut\u00e1nea alterada y una reacci\u00f3n a al\u00e9rgenos o irritantes. La forma m\u00e1s com\u00fan es la dermatitis at\u00f3pica.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u00bfQu\u00e9 dice la ciencia sobre c\u00f3mo distinguirlas?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Aunque comparten inflamaci\u00f3n y enrojecimiento, los dermat\u00f3logos se fijan en el aspecto de las lesiones y en el tipo de molestia para diferenciarlas.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Seg\u00fan una revisi\u00f3n publicada en la revista <em>Frontiers in Immunology<\/em> en 2025, la psoriasis se caracteriza por <a href=\"https:\/\/www.frontiersin.org\/journals\/immunology\/articles\/10.3389\/fimmu.2025.1541776\/full\" target=\"_blank\" rel=\"noreferrer noopener\">placas bien delimitadas cubiertas de escamas plateadas<\/a>, mientras que la dermatitis presenta lesiones enrojecidas peor definidas y con picor intenso. Esa diferencia en los bordes y las escamas es una de las claves.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u00bfC\u00f3mo se distinguen las placas?<\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" width=\"1024\" height=\"575\" src=\"https:\/\/www.tuasaude.com\/es\/news\/wp-content\/uploads\/2026\/07\/magnific_prompt-body-image-an-ultr_SOrsjbMUb8-1-1024x575.png\" alt=\"\" class=\"wp-image-4463\" style=\"aspect-ratio:1.7809391814772542;width:1170px;height:auto\" srcset=\"https:\/\/www.tuasaude.com\/es\/news\/wp-content\/uploads\/2026\/07\/magnific_prompt-body-image-an-ultr_SOrsjbMUb8-1-1024x575.png 1024w, https:\/\/www.tuasaude.com\/es\/news\/wp-content\/uploads\/2026\/07\/magnific_prompt-body-image-an-ultr_SOrsjbMUb8-1-300x169.png 300w, https:\/\/www.tuasaude.com\/es\/news\/wp-content\/uploads\/2026\/07\/magnific_prompt-body-image-an-ultr_SOrsjbMUb8-1-768x431.png 768w, https:\/\/www.tuasaude.com\/es\/news\/wp-content\/uploads\/2026\/07\/magnific_prompt-body-image-an-ultr_SOrsjbMUb8-1-1536x863.png 1536w, https:\/\/www.tuasaude.com\/es\/news\/wp-content\/uploads\/2026\/07\/magnific_prompt-body-image-an-ultr_SOrsjbMUb8-1-2048x1151.png 2048w, https:\/\/www.tuasaude.com\/es\/news\/wp-content\/uploads\/2026\/07\/magnific_prompt-body-image-an-ultr_SOrsjbMUb8-1-750x421.png 750w, https:\/\/www.tuasaude.com\/es\/news\/wp-content\/uploads\/2026\/07\/magnific_prompt-body-image-an-ultr_SOrsjbMUb8-1-1140x640.png 1140w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Comparaci\u00f3n visual en primer plano que muestra placas blanquecinas de psoriasis a la izquierda y piel enrojecida por dermatitis a la derecha.<\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">El aspecto de la piel ofrece las pistas m\u00e1s \u00fatiles. La psoriasis forma placas gruesas y con un borde n\u00edtido, mientras que el eccema se ve m\u00e1s difuso y a veces h\u00famedo.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Estas son las diferencias visuales:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Psoriasis<\/strong>: placas gruesas, bordes definidos, escamas plateadas.<\/li>\n\n\n\n<li><strong>Dermatitis<\/strong>: piel roja, seca o supurante, bordes difusos.<\/li>\n\n\n\n<li>La psoriasis puede picar, pero da m\u00e1s quemaz\u00f3n o dolor.<\/li>\n\n\n\n<li>El eccema produce un <strong>picor intenso<\/strong>, peor por la noche.<\/li>\n\n\n\n<li>La psoriasis a veces afecta a las u\u00f1as, con hoyuelos.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u00bfEn qu\u00e9 zonas suele aparecer cada una?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">La localizaci\u00f3n tambi\u00e9n orienta el diagn\u00f3stico. Cada afecci\u00f3n tiene sus zonas preferidas, aunque pueden aparecer en cualquier parte del cuerpo.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Estas son las diferencias de localizaci\u00f3n:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Psoriasis<\/strong>: codos, rodillas, cuero cabelludo y zona lumbar.<\/li>\n\n\n\n<li>Suele afectar a la cara externa de las articulaciones.<\/li>\n\n\n\n<li><strong>Dermatitis<\/strong>: pliegues de codos y rodillas, cuello y manos.<\/li>\n\n\n\n<li>En ni\u00f1os, a menudo en las mejillas y detr\u00e1s de las rodillas.<\/li>\n\n\n\n<li>El eccema prefiere las zonas de flexi\u00f3n.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u00bfQu\u00e9 desencadena cada una?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Los desencadenantes son distintos y conocerlos ayuda a controlar los brotes. La psoriasis responde a factores internos y externos, mientras que la dermatitis se liga m\u00e1s a irritantes y al\u00e9rgenos.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Estos son los desencadenantes m\u00e1s comunes:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Psoriasis<\/strong>: estr\u00e9s, infecciones, heridas en la piel y ciertos f\u00e1rmacos.<\/li>\n\n\n\n<li>Tambi\u00e9n el fr\u00edo, el alcohol y el tabaco.<\/li>\n\n\n\n<li><strong>Dermatitis<\/strong>: jabones, detergentes, <a href=\"https:\/\/www.tuasaude.com\/es\/remedio-casero-para-la-alergia-en-la-piel\/\" target=\"_blank\" rel=\"noreferrer noopener\">al\u00e9rgenos<\/a> y climas secos.<\/li>\n\n\n\n<li>El contacto con irritantes y el rascado.<\/li>\n\n\n\n<li>En ambas, el estr\u00e9s puede empeorar los brotes.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Lo que conviene recordar sobre la psoriasis y la dermatitis<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">La clave para distinguirlas est\u00e1 en las placas: la psoriasis forma lesiones gruesas, de bordes n\u00edtidos y escamas plateadas en codos, rodillas y cuero cabelludo, mientras que la dermatitis produce piel roja, mal definida y con picor intenso en los pliegues. Ninguna es contagiosa ni tiene cura, pero ambas se controlan bien evitando los desencadenantes, hidratando la piel y con el tratamiento del dermat\u00f3logo. Ante <a href=\"https:\/\/www.tuasaude.com\/es\/manchas-en-la-piel\/\" target=\"_blank\" rel=\"noreferrer noopener\">lesiones persistentes<\/a> en la piel, conviene consultar para un diagn\u00f3stico correcto.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Este contenido tiene finalidad informativa y <strong>no sustituye la evaluaci\u00f3n<\/strong> de un dermat\u00f3logo. Ante placas o lesiones persistentes en la piel, consulta con un profesional de la salud.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Lo que ver\u00e1s \u203aCu\u00e1ntos d\u00edas de diferencia hay en la velocidad con la que se renueva tu piel en cada caso \u203aEl detalle en el borde de la placa que m\u00e1s ayuda a diferenciarlas a simple vista \u203aPor qu\u00e9 una pica de noche y la otra da m\u00e1s quemaz\u00f3n que picor \u203aLas zonas del cuerpo [&hellip;]<\/p>\n","protected":false},"author":14,"featured_media":4458,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jnews-multi-image_gallery":[],"jnews_single_post":{"format":"standard"},"jnews_primary_category":[],"jnews_social_meta":[],"jnews_override_counter":[],"footnotes":""},"categories":[8767],"tags":[18616,18254,18618,17632,18615,18617],"class_list":["post-4265","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-salud","tag-dermatitis","tag-dermatologia-2","tag-eccema","tag-piel","tag-placas-en-la-piel","tag-psoriasis"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Psoriasis o dermatitis: c\u00f3mo distinguir las placas en la piel y qu\u00e9 las desencadena - Tua Saude<\/title>\n<meta name=\"description\" content=\"\u00bfPsoriasis o dermatitis? 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