{"id":1313,"date":"2023-05-23T12:47:17","date_gmt":"2023-05-23T18:47:17","guid":{"rendered":"https:\/\/www.h1d.com.mx\/?p=1313"},"modified":"2023-06-22T19:47:40","modified_gmt":"2023-06-23T01:47:40","slug":"alopecia-and-its-causes","status":"publish","type":"post","link":"https:\/\/www.h1d.com.mx\/en\/alopecia-and-its-causes\/","title":{"rendered":"What is alopecia and what are its causes?"},"content":{"rendered":"<p>La alopecia, o como com\u00fanmente se denomina, calvicie com\u00fan, es la p\u00e9rdida progresiva del cabello, sin posibilidad de regeneraci\u00f3n capilar.<\/p>\n<p>La alopecia no afecta exclusivamente al cabello, adem\u00e1s puede afectar a otras zonas de la piel en la que existe pelo, como las pesta\u00f1as, la barba, las axilas, la regi\u00f3n genital y las cejas.<\/p>\n<p>Existen diversos tipos de alopecia y los 4 m\u00e1s comunes son <strong>alopecia difusa, alopecia areata, alopecia cicatricial y alopecia androgen\u00e9tica<\/strong>, los<br \/>\ncuales vamos a explicar detalladamente cada una de ellas:<\/p>\n<h2>Alopecia difusa<\/h2>\n<p>La alopecia difusa es la p\u00e9rdida progresiva y generalizada del cabello que no llega a producir calvicie total. Afecta tanto a hombres como a mujeres. En estos casos, el pelo adquiere un aspecto lacio y sin vida, y se percibe sensaci\u00f3n de escasez.<\/p>\n<p>Este tipo de alopecia se puede desarrollar, entre otros factores, por causas endocrinas, por medica\u0002mentos o por la alimentaci\u00f3n. En el primer caso es s\u00edntoma de que existen problemas en las gl\u00e1ndulas endocrinas, como por ejemplo el hipertiroidismo o el hipotiroidismo, patolog\u00edas que suelen provocar p\u00e9rdida difusa del pelo.<\/p>\n<p>Los medicamentos tambi\u00e9n pueden influir en la ca\u00edda difusa y en el adelgazamiento del cabello, ejemplo de ello son los anticoagulantes, los tratamientos de quimioterapia, los medicamentos psiqui\u00e1tricos, los anticonceptivos orales, el exceso de vitamina A y el exceso de carbonato de litio, entre otros.<\/p>\n<p>La alimentaci\u00f3n es asimismo muy importante para la salud del cabello y para prevenir la alopecia difusa. Si el pelo no tiene los nutrientes necesarios para su desarrollo se vuelve seco, quebradizo y adelgazado. Las ra\u00edces del cabello podr\u00e1n tener hendiduras donde se fracturar\u00e1n con facilidad y los cabellos negros podr\u00e1n adquirir una coloraci\u00f3n rojiza.<\/p>\n<h2>Alopecia areata<\/h2>\n<p>La alopecia areata se caracteriza por la p\u00e9rdida del cabello en forma de parches redondos en una o varias zonas del cuero cabelludo, o bien, en otras partes del cuerpo. Un caso leve<br \/>\nde alopecia areata comienza con uno o dos parches sin pelo del tama\u00f1o de una moneda. La alopecia areata tiene un desarrollo dif\u00edcilmente predecible. En ocasiones, el cabello vuelve a<br \/>\ncrecer al cabo de algunas semanas, mientras que en otros la enfermedad progresa y se produce una p\u00e9rdida total del pelo en el cuero cabelludo y en el cuerpo.<\/p>\n<p>La alopecia areata puede afectar a hombres, mujeres y ni\u00f1os. En algunas personas, la p\u00e9rdida del cabello puede ocurrir despu\u00e9s de un evento importante, como una enfermedad, el embarazo o un traumatismo.<\/p>\n<h2>Alopecia cicatricial<\/h2>\n<p>La alopecia cicatricial es la calvicie que se produce como resultado de la malformaci\u00f3n, da\u00f1o o<br \/>\ndestrucci\u00f3n de los fol\u00edculos pilosos. Estos son sustituidos por un tejido cicatricial permanente en el que ya no<br \/>\npuede nacer pelo nuevo. Esta alopecia no es muy com\u00fan, ya que afecta a un bajo porcentaje de personas, se<br \/>\nda por igual en hombres y en mujeres, y es m\u00e1s com\u00fan que se desarrolle en los adultos<\/p>\n<p>Existen diferentes tipos de alopecia cicatricial:<\/p>\n<ul>\n<li><strong class=\"c-coloracento\">Alopecia cicatricial primaria:<\/strong> Este tipo de alopecia se produce por alteraciones en el desarrollo del fol\u00edculo piloso, o por alteraciones que son hereditarias.<\/li>\n<li><strong class=\"c-coloracento\">Alopecia cicatricial primaria adquirida:<\/strong> Existen ciertas dermatosis de origen autoinmune o de causa desconocida que pueden cursar la alopecia cicatricial<\/li>\n<li><strong class=\"c-coloracento\">Alopecia cicatricial secundaria.<\/strong>Este tipo de alopecia aparece cuando el fol\u00edculo piloso se destruye secundariamente en el curso de una infecci\u00f3n, proceso tumoral o secundariamente a procesos f\u00edsicos como radioterapia, quemaduras o cortes. Tambi\u00e9n la dermatofitosis o ti\u00f1a que se caracteriza por la producci\u00f3n de varios tipos de hongos de patogenicidad variable del cuero cabelludo que puede dar lugar a una alopecia cicatricial.<\/li>\n<\/ul>\n<h2>Alopecia androg\u00e9nica<\/h2>\n<p>La alopecia androgen\u00e9tica o androg\u00e9nica es la p\u00e9rdida de pelo a causa de factores gen\u00e9ticos. Es el<br \/>\ntipo de alopecia m\u00e1s com\u00fan, y afecta por lo general a la mayor\u00eda de los hombres, aunque tambi\u00e9n<br \/>\npuede darse en las mujeres.<\/p>\n<p>Es por eso que vamos a hablar m\u00e1s de este tipo de alopecia, primero explicando c\u00f3mo funciona para<br \/>\nlos hombres y c\u00f3mo funciona para las mujeres, as\u00ed como tambi\u00e9n, la manera en que se mide la fase en la que te encuentras seg\u00fan sea tu caso.<\/p>\n<blockquote class=\"c-coloracento\">\n<p>La alopecia androgen\u00e9tica, o como com\u00fanmente se le<br \/>\ndenomina, calvicie com\u00fan, afecta al 80% mayores de 21 a\u00f1os.<\/p>\n<\/blockquote>\n<p>Es la deficiencia capilar m\u00e1s com\u00fan en los hombres y su incidencia aumenta en un 10% cada d\u00e9cada;<br \/>\nas\u00ed pues, el 50% de los varones de 40 a\u00f1os se ven afectados por una ca\u00edda de cabello androgen\u00e9tica<br \/>\nm\u00e1s o menos importante. El riesgo de desarrollar alopecia androgen\u00e9tica o AGA aumenta con una<br \/>\nhistoria familiar positiva en el padre, la madre o el abuelo materno.<\/p>\n<p>Normalmente tras la adolescencia se produce un aumento de hormonas masculinas en la sangre, que en individuos gen\u00e9ticamente susceptibles transforman el pelo duro (pelo terminal) en un pelo m\u00e1s fino (pelo velloso) que con el tiempo dejar\u00e1 de crecer dando lugar a las \u00e1reas de calvicie.<\/p>\n<p>El desarrollo t\u00edpico de la alopecia androg\u00e9nica comienza en las zonas frontal y superior de la<br \/>\ncabeza y es el resultado de una predisposici\u00f3n hereditaria que provoca una ca\u00edda anormal del cabello debido a la acci\u00f3n de los andr\u00f3genos.<\/p>\n<p>Es importante mencionar que en algunos casos la ca\u00edda de cabello se comienza a presentar de manera contraria, esto quiere decir que se empieza a clarear el pelo por la coronilla, hasta que la alopecia se extiende por toda la parte superior de la cabeza.<\/p>\n<p style=\"font-style: italic; margin-top: 1.5em;\">Si sufres de alopecia y quieres saber m\u00e1s de tu caso en espec\u00edfico, agenda una <strong>cita de valoraci\u00f3n gratuita<\/strong> y con gusto te asesoraremos de la mejor manera. 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