{"id":7205,"date":"2016-09-20T14:32:45","date_gmt":"2016-09-20T12:32:45","guid":{"rendered":"https:\/\/www.imferblog.com\/?p=7205"},"modified":"2026-05-10T21:49:52","modified_gmt":"2026-05-10T19:49:52","slug":"en-espana-somos-464-millones-de-habitantes","status":"publish","type":"post","link":"https:\/\/www.imferblog.com\/?p=7205","title":{"rendered":"Demograf\u00eda y natalidad en Espa\u00f1a: el reto reproductivo del siglo XXI | IMFER Blog"},"content":{"rendered":"<p>Espa\u00f1a lleva m\u00e1s de una d\u00e9cada con una natalidad insuficiente para mantener su poblaci\u00f3n. Los datos del Instituto Nacional de Estad\u00edstica (INE) muestran una tendencia preocupante: cada vez nacen menos beb\u00e9s, cada vez las mujeres tienen a sus hijos m\u00e1s tarde, y cada vez hay menos mujeres en edad f\u00e9rtil. El resultado es un envejecimiento progresivo de la poblaci\u00f3n con consecuencias econ\u00f3micas y sociales de largo alcance.<\/p>\n<h2>Los n\u00fameros del declive demogr\u00e1fico<\/h2>\n<p>Desde 2012, la poblaci\u00f3n espa\u00f1ola ha disminuido cada a\u00f1o. La edad media se sit\u00faa ya en 42,7 a\u00f1os, un indicador claro de envejecimiento. La tasa de fecundidad \u2014el n\u00famero medio de hijos por mujer\u2014 se encuentra en torno a 1,2, muy por debajo del nivel de reemplazo (2,1).<\/p>\n<p>Los factores son m\u00faltiples y se retroalimentan: la inestabilidad laboral de las generaciones j\u00f3venes, el coste de la vivienda, la falta de conciliaci\u00f3n real, la incorporaci\u00f3n masiva de la mujer al mercado laboral sin que los servicios de cuidado hayan avanzado al mismo ritmo. El resultado es que muchas parejas que desean tener hijos los tienen m\u00e1s tarde o tienen menos de los que querr\u00edan.<\/p>\n<h2>La maternidad tard\u00eda y sus consecuencias reproductivas<\/h2>\n<p>Posponer la maternidad tiene consecuencias biol\u00f3gicas directas. La fertilidad femenina empieza a disminuir de forma perceptible a los 32-33 a\u00f1os y decae de forma acelerada a partir de los 37-38. Cuando una mujer llega a los 40 queriendo ser madre, es posible que necesite ayuda m\u00e9dica para lograrlo, cuando con una decade antes habr\u00eda podido concebir de forma natural.<\/p>\n<p>En IMFER vemos este fen\u00f3meno en nuestra consulta cada d\u00eda. La edad media de las pacientes que nos consultan ha aumentado progresivamente en los \u00faltimos a\u00f1os. M\u00e1s del 40% de los ciclos de fecundaci\u00f3n in vitro en Espa\u00f1a se realizan con ovodonaci\u00f3n, en gran medida por este motivo.<\/p>\n<h2>Opciones para las mujeres que quieren ganar tiempo<\/h2>\n<p>La vitrificaci\u00f3n de \u00f3vulos ofrece una herramienta para quienes saben que no podr\u00e1n buscar el embarazo en el momento de mayor fertilidad pero quieren preservar esa opci\u00f3n. Congelar \u00f3vulos entre los 30 y los 35 a\u00f1os, cuando la calidad ovocitaria es todav\u00eda buena, permite tenerlos disponibles para cuando el momento llegue.<\/p>\n<p>Ampl\u00eda informaci\u00f3n en nuestra <a href=\"\/preservacion-fertilidad-vitrificacion-ovulos\/\">gu\u00eda completa sobre vitrificaci\u00f3n de \u00f3vulos<\/a>.<\/p>\n<p class=\"imfer-article-cta-inline\">\u00bfTienes dudas sobre este tema? <a href=\"https:\/\/www.imfer.com\" target=\"_blank\" rel=\"noopener\">Consulta con nuestros especialistas en IMFER<\/a>.<\/p>\n<p><strong>Tambi\u00e9n puede interesarte:<\/strong> <a href=\"https:\/\/www.imferblog.com\/la-consanguinidad-duplicaba-el-riesgo-de-anomalias-congenitas\/\">Consanguinidad y anomal\u00edas cong\u00e9nitas: riesgos y opciones\u2026<\/a> y <a href=\"https:\/\/www.imferblog.com\/la-consanguinidad-duplicaba-el-riesgo-de-anomalias-congenitas\/\">Consanguinidad y anomal\u00edas cong\u00e9nitas: riesgos y opciones\u2026<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Espa\u00f1a lleva m\u00e1s de una d\u00e9cada con una natalidad insuficiente para mantener su poblaci\u00f3n. Los datos del Instituto Nacional de Estad\u00edstica (INE) muestran una tendencia preocupante: cada vez nacen menos beb\u00e9s, cada vez las mujeres tienen a sus hijos m\u00e1s tarde, y cada vez hay menos mujeres en edad f\u00e9rtil. &#8230;<\/p>\n","protected":false},"author":1,"featured_media":7206,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[1289,7,1286],"class_list":["post-7205","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualidad","tag-actualidad","tag-fertilidad","tag-reproduccion-asistida","h-entry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.5 (Yoast SEO v27.6) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Demograf\u00eda y natalidad en Espa\u00f1a | IMFER Blog<\/title>\n<meta name=\"description\" content=\"Espa\u00f1a envejece: natalidad en m\u00ednimos, maternidad tard\u00eda y sus consecuencias reproductivas. 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