{"id":109262,"date":"2026-09-06T08:25:00","date_gmt":"2026-09-06T11:25:00","guid":{"rendered":"https:\/\/www.tuasaude.com\/news\/?p=109262"},"modified":"2026-09-05T23:33:20","modified_gmt":"2026-09-06T02:33:20","slug":"formigamento-constante-nas-maos-e-nos-pes-sem-posicao-errada-nao-e-so-circulacao-pode-indicar-neuropatia-por-diabetes-ou-deficiencia-de-b12-e-pede-investigacao","status":"publish","type":"post","link":"https:\/\/www.tuasaude.com\/news\/2026\/09\/06\/formigamento-constante-nas-maos-e-nos-pes-sem-posicao-errada-nao-e-so-circulacao-pode-indicar-neuropatia-por-diabetes-ou-deficiencia-de-b12-e-pede-investigacao\/","title":{"rendered":"Formigamento constante nas m\u00e3os e nos p\u00e9s sem posi\u00e7\u00e3o errada n\u00e3o \u00e9 s\u00f3 circula\u00e7\u00e3o: pode indicar neuropatia por diabetes ou defici\u00eancia de B12 e pede investiga\u00e7\u00e3o"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Formigamento persistente nas m\u00e3os e nos p\u00e9s, sem rela\u00e7\u00e3o com posi\u00e7\u00e3o errada ou compress\u00e3o moment\u00e2nea, raramente \u00e9 apenas &#8220;m\u00e1 circula\u00e7\u00e3o&#8221;. Quando o sintoma se repete, \u00e9 sim\u00e9trico e vem acompanhado de dorm\u00eancia ou queima\u00e7\u00e3o, costuma ser um sinal de neuropatia perif\u00e9rica, condi\u00e7\u00e3o frequentemente ligada ao diabetes ou \u00e0 defici\u00eancia de vitamina B12. Reconhecer esse padr\u00e3o e realizar exames simples de sangue pode evitar danos permanentes nos nervos.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Por que o formigamento sim\u00e9trico \u00e9 um sinal de alerta?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Quando o formigamento aparece nas duas m\u00e3os ou nos dois p\u00e9s ao mesmo tempo, de forma constante ou repetida, o padr\u00e3o sugere que o problema n\u00e3o est\u00e1 em um nervo isolado, mas sim em v\u00e1rias fibras nervosas perif\u00e9ricas ao mesmo tempo. Esse \u00e9 o quadro cl\u00e1ssico da neuropatia perif\u00e9rica.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Diferente da dorm\u00eancia passageira causada por posi\u00e7\u00e3o inadequada, o formigamento por dano nervoso costuma piorar \u00e0 noite, avan\u00e7ar lentamente pelas extremidades e vir junto com queima\u00e7\u00e3o, fraqueza ou perda gradual da sensibilidade.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Quais s\u00e3o as causas mais comuns desse tipo de sintoma?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Entre as origens mais frequentes do formigamento persistente est\u00e3o condi\u00e7\u00f5es metab\u00f3licas e nutricionais que afetam diretamente a sa\u00fade dos nervos. As principais causas incluem:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Diabetes mal controlado:<\/strong> n\u00edveis altos de glicose por longos per\u00edodos danificam progressivamente as fibras nervosas, gerando a neuropatia diab\u00e9tica;<\/li>\n\n\n\n<li><strong>Defici\u00eancia de vitamina B12:<\/strong> compromete a forma\u00e7\u00e3o da bainha de mielina, camada que reveste e protege os nervos;<\/li>\n\n\n\n<li><strong>Hipotireoidismo:<\/strong> altera o metabolismo e pode afetar a condu\u00e7\u00e3o nervosa;<\/li>\n\n\n\n<li><strong>Consumo excessivo de \u00e1lcool:<\/strong> t\u00f3xico direto para os nervos perif\u00e9ricos;<\/li>\n\n\n\n<li><strong>Uso prolongado de certos medicamentos:<\/strong> como metformina, quimioter\u00e1picos e alguns antibi\u00f3ticos;<\/li>\n\n\n\n<li><strong>Compress\u00f5es nervosas:<\/strong> s\u00edndrome do t\u00fanel do carpo ou h\u00e9rnias de disco, geralmente com padr\u00e3o mais localizado.<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"571\" src=\"https:\/\/www.tuasaude.com\/news\/wp-content\/uploads\/2026\/09\/Medical_infographic_explaining_h\u2026_202609052332-1024x571.jpg\" alt=\"Padr\u00e3o sim\u00e9trico, diabetes, vitamina B12 e exames orientam a investiga\u00e7\u00e3o da neuropatia.\" class=\"wp-image-109265\" srcset=\"https:\/\/www.tuasaude.com\/news\/wp-content\/uploads\/2026\/09\/Medical_infographic_explaining_h\u2026_202609052332-1024x571.jpg 1024w, https:\/\/www.tuasaude.com\/news\/wp-content\/uploads\/2026\/09\/Medical_infographic_explaining_h\u2026_202609052332-300x167.jpg 300w, https:\/\/www.tuasaude.com\/news\/wp-content\/uploads\/2026\/09\/Medical_infographic_explaining_h\u2026_202609052332-768x428.jpg 768w, https:\/\/www.tuasaude.com\/news\/wp-content\/uploads\/2026\/09\/Medical_infographic_explaining_h\u2026_202609052332-750x418.jpg 750w, https:\/\/www.tuasaude.com\/news\/wp-content\/uploads\/2026\/09\/Medical_infographic_explaining_h\u2026_202609052332-1140x636.jpg 1140w, https:\/\/www.tuasaude.com\/news\/wp-content\/uploads\/2026\/09\/Medical_infographic_explaining_h\u2026_202609052332.jpg 1280w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Padr\u00e3o sim\u00e9trico, diabetes, vitamina B12 e exames orientam a investiga\u00e7\u00e3o da neuropatia.<\/figcaption><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\">Como um estudo cient\u00edfico refor\u00e7a a rela\u00e7\u00e3o entre diabetes e neuropatia?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A liga\u00e7\u00e3o entre diabetes e dano nos nervos perif\u00e9ricos \u00e9 uma das mais bem documentadas na medicina. Segundo a revis\u00e3o <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/31197153\/\" target=\"_blank\" rel=\"noreferrer noopener\">Diabetic neuropathy<\/a>, publicada na revista Nature Reviews Disease Primers, ao menos metade das pessoas com diabetes desenvolve neuropatia ao longo da vida, com perda de fun\u00e7\u00e3o sensorial que come\u00e7a nas extremidades inferiores.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Os autores destacam que o controle glic\u00eamico rigoroso \u00e9 a principal medida capaz de frear a progress\u00e3o do problema, especialmente em pessoas com diabetes tipo 1. Diretrizes da Sociedade Brasileira de Diabetes e da Academia Americana de Neurologia seguem essa mesma orienta\u00e7\u00e3o, recomendando avalia\u00e7\u00e3o sensorial peri\u00f3dica e rastreamento precoce.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Quais exames ajudam a investigar a causa do formigamento?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A investiga\u00e7\u00e3o come\u00e7a por exames laboratoriais simples e acess\u00edveis, que ajudam a identificar as causas mais frequentes. Os principais solicitados em uma primeira avalia\u00e7\u00e3o s\u00e3o:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Glicemia de jejum:<\/strong> mede o n\u00edvel de a\u00e7\u00facar no sangue ap\u00f3s per\u00edodo sem alimenta\u00e7\u00e3o;<\/li>\n\n\n\n<li><strong>Hemoglobina glicada (HbA1c):<\/strong> mostra a m\u00e9dia da glicose nos \u00faltimos 2 a 3 meses e ajuda a diagnosticar diabetes ou pr\u00e9-diabetes;<\/li>\n\n\n\n<li><strong>Vitamina B12 s\u00e9rica:<\/strong> avalia os estoques da vitamina, com valores abaixo de 200 pg\/mL geralmente indicando defici\u00eancia;<\/li>\n\n\n\n<li><strong>Hemograma completo:<\/strong> detecta anemia, que pode estar associada \u00e0 falta de B12;<\/li>\n\n\n\n<li><strong>TSH e T4 livre:<\/strong> avaliam a fun\u00e7\u00e3o da tireoide;<\/li>\n\n\n\n<li><strong>Eletroneuromiografia:<\/strong> exame complementar que mede a condu\u00e7\u00e3o dos nervos, solicitado em casos selecionados.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Complementarmente, o m\u00e9dico pode investigar outros quadros como <a href=\"https:\/\/www.tuasaude.com\/polineuropatia-periferica\/\" target=\"_blank\" rel=\"noreferrer noopener\">polineuropatia perif\u00e9rica<\/a> de causas menos comuns, al\u00e9m de avaliar o hist\u00f3rico alimentar e o uso de medicamentos.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"571\" src=\"https:\/\/www.tuasaude.com\/news\/wp-content\/uploads\/2026\/09\/Man_undergoing_medical_sensory_e\u2026_202609052332-1024x571.jpg\" alt=\"Diabetes e defici\u00eancia de B12 est\u00e3o entre as causas investigadas no formigamento persistente.\" class=\"wp-image-109266\" srcset=\"https:\/\/www.tuasaude.com\/news\/wp-content\/uploads\/2026\/09\/Man_undergoing_medical_sensory_e\u2026_202609052332-1024x571.jpg 1024w, https:\/\/www.tuasaude.com\/news\/wp-content\/uploads\/2026\/09\/Man_undergoing_medical_sensory_e\u2026_202609052332-300x167.jpg 300w, https:\/\/www.tuasaude.com\/news\/wp-content\/uploads\/2026\/09\/Man_undergoing_medical_sensory_e\u2026_202609052332-768x428.jpg 768w, https:\/\/www.tuasaude.com\/news\/wp-content\/uploads\/2026\/09\/Man_undergoing_medical_sensory_e\u2026_202609052332-750x418.jpg 750w, https:\/\/www.tuasaude.com\/news\/wp-content\/uploads\/2026\/09\/Man_undergoing_medical_sensory_e\u2026_202609052332-1140x636.jpg 1140w, https:\/\/www.tuasaude.com\/news\/wp-content\/uploads\/2026\/09\/Man_undergoing_medical_sensory_e\u2026_202609052332.jpg 1280w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Diabetes e defici\u00eancia de B12 est\u00e3o entre as causas investigadas no formigamento persistente.<\/figcaption><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\">Quando \u00e9 preciso procurar atendimento m\u00e9dico?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">O ideal \u00e9 buscar avalia\u00e7\u00e3o sempre que o formigamento for frequente, bilateral, piorar \u00e0 noite ou vier acompanhado de dorm\u00eancia, queima\u00e7\u00e3o, fraqueza ou perda de equil\u00edbrio. Tamb\u00e9m merece aten\u00e7\u00e3o quando afeta pessoas com diabetes, idosos, vegetarianos estritos ou usu\u00e1rios cr\u00f4nicos de medicamentos que reduzem a absor\u00e7\u00e3o da <a href=\"https:\/\/www.tuasaude.com\/vitamina-b12-cobalamina\/\" target=\"_blank\" rel=\"noreferrer noopener\">vitamina B12<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sintomas de in\u00edcio s\u00fabito, associados a fraqueza intensa, dificuldade para andar, altera\u00e7\u00e3o da fala ou perda do controle da urina exigem atendimento imediato, pois podem indicar quadros neurol\u00f3gicos graves que fogem do padr\u00e3o da neuropatia perif\u00e9rica.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Este conte\u00fado tem car\u00e1ter apenas informativo e n\u00e3o substitui a avalia\u00e7\u00e3o, o diagn\u00f3stico ou o tratamento realizados por um profissional de sa\u00fade qualificado. Em caso de d\u00favidas ou sintomas persistentes, consulte sempre um m\u00e9dico.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Formigamento persistente nas m\u00e3os e nos p\u00e9s, sem rela\u00e7\u00e3o com posi\u00e7\u00e3o errada ou compress\u00e3o moment\u00e2nea, raramente \u00e9 apenas &#8220;m\u00e1 circula\u00e7\u00e3o&#8221;. Quando o sintoma se repete, \u00e9 sim\u00e9trico e vem acompanhado de dorm\u00eancia ou queima\u00e7\u00e3o, costuma ser um sinal de neuropatia perif\u00e9rica, condi\u00e7\u00e3o frequentemente ligada ao diabetes ou \u00e0 defici\u00eancia de vitamina B12. Reconhecer esse padr\u00e3o [&hellip;]<\/p>\n","protected":false},"author":11,"featured_media":109264,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"formigamento","_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"Formigamento nas m\u00e3os e nos p\u00e9s pode indicar neuropatia ligada ao diabetes ou \u00e0 falta de vitamina B12. Entenda os sinais que merecem investiga\u00e7\u00e3o m\u00e9dica.","jnews-multi-image_gallery":[],"jnews_single_post":{"format":"standard"},"jnews_primary_category":[],"jnews_social_meta":[],"jnews_override_counter":[],"footnotes":""},"categories":[111],"tags":[1095,1182,261,2767],"class_list":["post-109262","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-saude","tag-circulacao","tag-deficiencia-de-b12","tag-diabetes","tag-formigamento"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Formigamento constante nas m\u00e3os e nos p\u00e9s sem posi\u00e7\u00e3o errada n\u00e3o \u00e9 s\u00f3 circula\u00e7\u00e3o: pode indicar neuropatia por diabetes ou defici\u00eancia de B12 e pede investiga\u00e7\u00e3o - Tua Sa\u00fade<\/title>\n<meta name=\"description\" content=\"Formigamento nas m\u00e3os e nos p\u00e9s pode indicar neuropatia ligada ao diabetes ou \u00e0 falta de vitamina B12. 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