{"id":58771,"date":"2016-12-09T15:09:31","date_gmt":"2016-12-09T14:09:31","guid":{"rendered":"https:\/\/www.darmklachten.nl\/symptoms\/black-stool\/"},"modified":"2026-09-28T22:01:27","modified_gmt":"2026-09-28T20:01:27","slug":"black-stool","status":"publish","type":"page","link":"https:\/\/www.darmklachten.nl\/en\/symptoms\/black-stool\/","title":{"rendered":"Black stool"},"content":{"rendered":"<div class=\"wpb-content-wrapper\" id=\"wpb-content-root\">[vc_row el_id=&#8221;maagpijn-misselijkheid&#8221;][vc_column][vc_column_text]\n<h2>What you need to know about black stool<\/h2>\n<p>Normal human stool is firm, well formed and brown in color due to remnants of our blood. The brown color of stool ranges from light brown (peanut-butter-like) to dark brown (chocolate-spread-like). Bile and bilirubin originate from red blood cells and give stool its brown color. Dark stool indicates that it has remained in the body longer. In newborn babies, fecal matter is initially yellow-green. The appearance and color of stool can vary greatly in adults and young children. The color of stool can tell us a great deal about our health. An abnormal color can have various causes. A change in color may be caused by certain foods, medications or an underlying medical condition.<\/p>\n<p>Do you have black stool? Be alert. In this case, it is advisable to contact your doctor. Black stool is stool mixed with blood. The combination of blood and gastric juices causes the dark color. The blood also gives the stool a sticky texture. It is important to determine what is causing the black stool, because blood in the stool can be dangerous. Read here about the causes and treatment of black stool.[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text]\n<div class=\"wpex-alert wpex-alert-info\">\n<p><span class=\"thin-font\" style=\"color: #000000;\"><span class=\"thin-font\" style=\"color: #000000;\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-12995 alignright\" src=\"https:\/\/www.darmklachten.nl\/wp-content\/uploads\/2016\/12\/Zwarte.png\" alt=\"Black stool\" width=\"114\" height=\"114\" title=\"\" srcset=\"https:\/\/www.darmklachten.nl\/wp-content\/uploads\/2016\/12\/Zwarte.png 200w, https:\/\/www.darmklachten.nl\/wp-content\/uploads\/2016\/12\/Zwarte-150x150.png 150w, https:\/\/www.darmklachten.nl\/wp-content\/uploads\/2016\/12\/Zwarte-100x100.png 100w\" sizes=\"auto, (max-width: 114px) 100vw, 114px\" \/><strong>Treatment of black stool<br \/>\n<\/strong><\/span><\/span>With black stool, a test is first performed to determine exactly what is going on. The stool is tested for occult &#8211; in other words, invisible &#8211; blood. If the test repeatedly shows that there is blood in the stool, then something is clearly going on. The stool can also be tested for the presence of transferrin, calprotectin or lactoferrin. Anti-inflammatory medication may be prescribed. An internal examination is often needed to determine the exact cause of the black stool.<\/p>\n<\/div>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text]\n<h2>Symptoms associated with black stool and intestinal complaints<\/h2>\n<p>Black diarrhea can indicate inflammation in the stomach or intestine, or cancer. Other symptoms include:<\/p>\n<ul>\n<li>A changing bowel pattern<\/li>\n<li>Weight loss<\/li>\n<li>Fatigue<\/li>\n<li>Abdominal pain<\/li>\n<li>A bloated abdomen<\/li>\n<li>Sticky stool<\/li>\n<\/ul>\n<p>Do you recognize these symptoms in combination with diarrhea? Have it investigated as soon as possible to determine whether it is caused by intestinal inflammation or colorectal cancer.[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text]\n<h2>Tests for black stool<\/h2>\n<p>For black-colored stool, stool testing through Darmklachten.nl may help. See our recommended test packages and individual modules below.[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column]<div class=\"woocommerce columns-3 \">\n\t<ul class=\"products wpex-row wpex-clr match-height-grid gap-15\">\n\n<li class=\"entry has-media col wpex-woo-entry span_1_of_3 span_1_of_2_tl span_1_of_2_tp span_1_of_1_pl span_1_of_1_pp product type-product post-59362 status-publish first instock product_cat-modules-3 product_cat-digestion-2 has-post-thumbnail taxable shipping-taxable purchasable product-type-simple\">\n\t<div class=\"product-inner wpex-clr\"><div class=\"wpex-loop-product-images\"><a href=\"https:\/\/www.darmklachten.nl\/en\/testen\/bile-and-pancreas\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\n\t<div class=\"woo-entry-image-swap wpex-clr\"><img decoding=\"async\" loading=\"lazy\" class=\"woo-entry-image-main wp-post-image\" alt=\"Bile And Pancreas\" src=\"https:\/\/www.darmklachten.nl\/wp-content\/uploads\/2023\/11\/GAL-ALVLEESKLIER.jpg\" width=\"1080\" height=\"1080\" title=\"\"><img decoding=\"async\" loading=\"lazy\" class=\"woo-entry-image-secondary\" src=\"https:\/\/www.darmklachten.nl\/wp-content\/uploads\/2023\/04\/gal-collage.jpg\" alt=\"Bile Collage\" width=\"1200\" height=\"1200\" title=\"\"><\/div>\n\n<\/a><\/div><div class=\"product-details match-height-content\"><p class=\"woocommerce-loop-product__title\"><a href=\"https:\/\/www.darmklachten.nl\/en\/testen\/bile-and-pancreas\/\">Bile and pancreas<\/a><\/p>\n\t<span class=\"price\"><span class=\"woocommerce-Price-amount amount\"><bdi><span class=\"woocommerce-Price-currencySymbol\" translate=\"no\" dir=\"auto\">&euro;<\/span>&nbsp;80,00<\/bdi><\/span><\/span>\n<a rel=\"nofollow\" href=\"https:\/\/www.darmklachten.nl\/en\/testen\/bile-and-pancreas\/\" class=\"meer-informatie\">meer informatie<\/a><\/div><a href=\"\/en\/wp-json\/wp\/v2\/pages\/58771?add-to-cart=59362\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"59362\" data-product_sku=\"\" aria-label=\"Add to cart: &ldquo;Bile and pancreas&rdquo;\" rel=\"nofollow\" data-success_message=\"&ldquo;Bile and pancreas&rdquo; has been added to your cart\">+<\/a><span class=\"gtm4wp_productdata\" style=\"display:none; visibility:hidden;\" data-gtm4wp_product_data=\"{&quot;internal_id&quot;:59362,&quot;item_id&quot;:59362,&quot;item_name&quot;:&quot;Bile and pancreas&quot;,&quot;sku&quot;:59362,&quot;price&quot;:80,&quot;stocklevel&quot;:null,&quot;stockstatus&quot;:&quot;instock&quot;,&quot;google_business_vertical&quot;:&quot;retail&quot;,&quot;item_category&quot;:&quot;Modules&quot;,&quot;id&quot;:59362,&quot;productlink&quot;:&quot;https:\\\/\\\/www.darmklachten.nl\\\/en\\\/testen\\\/bile-and-pancreas\\\/&quot;,&quot;item_list_name&quot;:&quot;General Product List&quot;,&quot;index&quot;:1,&quot;product_type&quot;:&quot;simple&quot;,&quot;item_brand&quot;:&quot;&quot;}\"><\/span><\/div><\/li>\n<li class=\"entry has-media col wpex-woo-entry span_1_of_3 span_1_of_2_tl span_1_of_2_tp span_1_of_1_pl span_1_of_1_pp product type-product post-59370 status-publish instock product_cat-digestion-2 product_cat-modules-3 product_cat-niet-gecategoriseerd has-post-thumbnail taxable shipping-taxable purchasable product-type-simple\">\n\t<div class=\"product-inner wpex-clr\"><div class=\"wpex-loop-product-images\"><a href=\"https:\/\/www.darmklachten.nl\/en\/testen\/stomach\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\n\t<div class=\"woo-entry-image-swap wpex-clr\"><img decoding=\"async\" loading=\"lazy\" class=\"woo-entry-image-main wp-post-image\" alt=\"Stomach\" src=\"https:\/\/www.darmklachten.nl\/wp-content\/uploads\/2023\/04\/maag-doos.jpg\" width=\"2446\" height=\"2447\" title=\"\"><img decoding=\"async\" loading=\"lazy\" class=\"woo-entry-image-secondary\" src=\"https:\/\/www.darmklachten.nl\/wp-content\/uploads\/2023\/04\/maag-collage.jpg\" alt=\"Stomach Collage\" width=\"1200\" height=\"1200\" title=\"\"><\/div>\n\n<\/a><\/div><div class=\"product-details match-height-content\"><p class=\"woocommerce-loop-product__title\"><a href=\"https:\/\/www.darmklachten.nl\/en\/testen\/stomach\/\">Stomach<\/a><\/p>\n\t<span class=\"price\"><span class=\"woocommerce-Price-amount amount\"><bdi><span class=\"woocommerce-Price-currencySymbol\" translate=\"no\" dir=\"auto\">&euro;<\/span>&nbsp;97,00<\/bdi><\/span><\/span>\n<a rel=\"nofollow\" href=\"https:\/\/www.darmklachten.nl\/en\/testen\/stomach\/\" class=\"meer-informatie\">meer informatie<\/a><\/div><a href=\"\/en\/wp-json\/wp\/v2\/pages\/58771?add-to-cart=59370\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"59370\" data-product_sku=\"\" aria-label=\"Add to cart: &ldquo;Stomach&rdquo;\" rel=\"nofollow\" data-success_message=\"&ldquo;Stomach&rdquo; has been added to your cart\">+<\/a><span class=\"gtm4wp_productdata\" style=\"display:none; visibility:hidden;\" data-gtm4wp_product_data=\"{&quot;internal_id&quot;:59370,&quot;item_id&quot;:59370,&quot;item_name&quot;:&quot;Stomach&quot;,&quot;sku&quot;:59370,&quot;price&quot;:97,&quot;stocklevel&quot;:null,&quot;stockstatus&quot;:&quot;instock&quot;,&quot;google_business_vertical&quot;:&quot;retail&quot;,&quot;item_category&quot;:&quot;Digestion&quot;,&quot;id&quot;:59370,&quot;productlink&quot;:&quot;https:\\\/\\\/www.darmklachten.nl\\\/en\\\/testen\\\/stomach\\\/&quot;,&quot;item_list_name&quot;:&quot;General Product List&quot;,&quot;index&quot;:2,&quot;product_type&quot;:&quot;simple&quot;,&quot;item_brand&quot;:&quot;&quot;}\"><\/span><\/div><\/li>\n<li class=\"entry has-media col wpex-woo-entry span_1_of_3 span_1_of_2_tl span_1_of_2_tp span_1_of_1_pl span_1_of_1_pp product type-product post-59531 status-publish last instock product_cat-all-tests product_cat-digestion-2 product_cat-test-kits has-post-thumbnail sale taxable shipping-taxable product-type-bundle\">\n\t<div class=\"product-inner wpex-clr\">\n\t<span class=\"onsale\">Sale<\/span>\n\t<div class=\"wpex-loop-product-images\"><a href=\"https:\/\/www.darmklachten.nl\/en\/testen\/stomach-pain-nausea-package\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\n\t<div class=\"woo-entry-image-swap wpex-clr\"><img decoding=\"async\" loading=\"lazy\" class=\"woo-entry-image-main wp-post-image\" alt=\"Stomach Pain &#038; Nausea Package\" src=\"https:\/\/www.darmklachten.nl\/wp-content\/uploads\/2023\/11\/MAAGPIJN-MISSELIJKHEID.jpg\" width=\"1080\" height=\"1080\" title=\"\"><img decoding=\"async\" loading=\"lazy\" class=\"woo-entry-image-secondary\" src=\"https:\/\/www.darmklachten.nl\/wp-content\/uploads\/2023\/04\/vertering-collage.jpg\" alt=\"Digestion Collage\" width=\"1200\" height=\"1200\" title=\"\"><\/div>\n\n<\/a><\/div><div class=\"product-details match-height-content\"><p class=\"woocommerce-loop-product__title\"><a href=\"https:\/\/www.darmklachten.nl\/en\/testen\/stomach-pain-nausea-package\/\">Stomach pain &#038; Nausea package<\/a><\/p>\n<a rel=\"nofollow\" href=\"https:\/\/www.darmklachten.nl\/en\/testen\/stomach-pain-nausea-package\/\" class=\"meer-informatie\">meer informatie<\/a><\/div><a href=\"https:\/\/www.darmklachten.nl\/en\/testen\/stomach-pain-nausea-package\/\" data-quantity=\"1\" class=\"button product_type_bundle\" data-product_id=\"59531\" data-product_sku=\"\" aria-label=\"Read more about &ldquo;Stomach pain &amp; Nausea package&rdquo;\" rel=\"\">+<\/a><span class=\"gtm4wp_productdata\" style=\"display:none; visibility:hidden;\" data-gtm4wp_product_data=\"{&quot;internal_id&quot;:59531,&quot;item_id&quot;:59531,&quot;item_name&quot;:&quot;Stomach pain &amp; Nausea package&quot;,&quot;sku&quot;:59531,&quot;price&quot;:292,&quot;stocklevel&quot;:null,&quot;stockstatus&quot;:&quot;instock&quot;,&quot;google_business_vertical&quot;:&quot;retail&quot;,&quot;item_category&quot;:&quot;Digestion&quot;,&quot;id&quot;:59531,&quot;productlink&quot;:&quot;https:\\\/\\\/www.darmklachten.nl\\\/en\\\/testen\\\/stomach-pain-nausea-package\\\/&quot;,&quot;item_list_name&quot;:&quot;General Product List&quot;,&quot;index&quot;:3,&quot;product_type&quot;:&quot;bundle&quot;,&quot;item_brand&quot;:&quot;&quot;}\"><\/span><\/div><\/li>\n<\/ul>\n<\/div>[vc_btn title=&#8221;View all related test modules&#8221; style=&#8221;custom&#8221; custom_background=&#8221;#6dc199&#8243; custom_text=&#8221;#ffffff&#8221; shape=&#8221;round&#8221; align=&#8221;center&#8221; i_icon_fontawesome=&#8221;fas fa-cart-plus&#8221; add_icon=&#8221;true&#8221; link=&#8221;url:https%3A%2F%2Fwww.darmklachten.nl%2Fen%2Fsymptoom%2Fblack-stool%2F|&#8221; css=&#8221;.vc_custom_1696509865587{margin-top: 32px !important;margin-bottom: 0px !important;padding-top: 0px !important;padding-bottom: 0px !important;}&#8221;][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text]\n<h2>Causes of black stool<\/h2>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column width=&#8221;1\/2&#8243;][vc_column_text]The cause of black stool is not always easy to determine. The cause may be completely harmless. It can, for example, be caused by dark foods such as licorice, blueberries or red wine. Iron supplements or charcoal tablets can also make the stool dark. In that case, there is usually nothing unusual going on. Can you not attribute the black stool to any of these things? Contact your doctor. Black stool can also be caused by a stomach ulcer, intestinal diseases, intestinal inflammation or cancer. Is the black stool accompanied by severe abdominal and stomach pain? This may be a sign of internal bleeding.[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/2&#8243;][vc_column_text]\n<div class=\"wpex-alert wpex-alert-info wpex-alert-warning\"><span class=\"thin-font\"><strong>IMPORTANT: Legislation relating to occult blood testing<\/strong><\/span><br \/>\n<span class=\"thin-font\">Under the Population Screening Act, Darmklachten.nl does not offer the occult blood test. Under this law, the test may only be performed if the request is submitted by a BIG-registered physician (Individual Healthcare Professions Act &#8211; Wet BIG) under the following conditions:<br \/>\n<\/span><br \/>\nThe patient falls outside the 55-to-75-year age group<br \/>\nThere is an individual request for care or a medical indication<br \/>\n<span class=\"thin-font\"><br \/>\nAre you concerned about colorectal cancer, for example because it runs in your family, or do you see traces of blood in your stool? Contact your general practitioner. In this article, we provide more information about the causes of blood in the stool and offer tests that are relevant to inflammation &#8211; where blood loss can be a symptom. After a positive occult blood test, an internal examination (endoscopy) will be needed to detect inflammation, polyps or colorectal cancer.<\/span><\/div>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text]\n<h2>More information about the tests<\/h2>\n<p>If you are concerned about colorectal cancer, contact your general practitioner for a test for hidden blood in the stool (occult blood). This test cannot be offered through this platform under the Population Screening Act and the Individual Healthcare Professions Act. Because blood can also enter the stool for other reasons, the following tests can be requested through Darmklachten.nl:<\/p>\n<ul>\n<li>Calprotectin \u2013 Inflammation marker for Crohn\u2019s disease and ulcerative colitis \u2013\u00a0<a href=\"https:\/\/www.darmklachten.nl\/aandoeningen\/crohn-en-colitis-ulcerosa\/\">read more\u2026<\/a><\/li>\n<li>Lactoferrin \u2013 A natural antibiotic that helps immune cells eliminate harmful bacteria in the body \u2013 read more<\/li>\n<li>TNF-alpha \u2013\u00a0Messenger molecules (cytokines) that increase during the acute phase of an infection and help fight the infection by inducing fever, stimulating cell death and suppressing appetite \u2013 read more<\/li>\n<li>Beta-Defensin-2 \u2013\u00a0Anti-inflammatory substance that is produced exclusively in the large intestine and protects it \u2013 read more<\/li>\n<\/ul>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text]<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-12983\" src=\"https:\/\/www.darmklachten.nl\/wp-content\/uploads\/2016\/12\/wat-vertelt-je-ontlasting-je-over-je-gezondheid.jpg\" alt=\"Stool health infographic\" width=\"1275\" height=\"2627\" title=\"\">[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text]<strong><span style=\"font-size: 24px;\">About darmklachten.nl<\/span><\/strong>[\/vc_column_text][vc_row_inner css=&#8221;.vc_custom_1617007411960{margin-top: 16px !important;}&#8221;][vc_column_inner width=&#8221;3\/4&#8243;][vc_column_text]Darmklachten.nl is an initiative of MGlab&amp;Advies, a laboratory specializing in stool testing. &#8230;<a href=\"https:\/\/www.darmklachten.nl\/en\/about-us\/\">read more<\/a>[\/vc_column_text][\/vc_column_inner][vc_column_inner width=&#8221;1\/4&#8243;][vc_column_text]<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-46036\" src=\"https:\/\/www.darmklachten.nl\/wp-content\/uploads\/2023\/03\/MGLAB-LOGO-TEKST-2022.jpg\" alt=\"\" width=\"637\" height=\"126\" title=\"\" srcset=\"https:\/\/www.darmklachten.nl\/wp-content\/uploads\/2023\/03\/MGLAB-LOGO-TEKST-2022.jpg 637w, https:\/\/www.darmklachten.nl\/wp-content\/uploads\/2023\/03\/MGLAB-LOGO-TEKST-2022-300x59.jpg 300w, https:\/\/www.darmklachten.nl\/wp-content\/uploads\/2023\/03\/MGLAB-LOGO-TEKST-2022-600x119.jpg 600w\" sizes=\"auto, (max-width: 637px) 100vw, 637px\" \/>[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row]\n<\/div>","protected":false},"excerpt":{"rendered":"<p>[vc_row el_id=&#8221;maagpijn-misselijkheid&#8221;][vc_column][vc_column_text] What you need to know about black stool Normal human stool is firm, well formed and brown in color due to remnants of our blood. The brown color of stool ranges from light brown (peanut-butter-like) to dark brown&hellip;<\/p>\n","protected":false},"author":2429,"featured_media":0,"parent":57690,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-58771","page","type-page","status-publish","hentry","entry","no-media"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.darmklachten.nl\/en\/wp-json\/wp\/v2\/pages\/58771","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.darmklachten.nl\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.darmklachten.nl\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.darmklachten.nl\/en\/wp-json\/wp\/v2\/users\/2429"}],"replies":[{"embeddable":true,"href":"https:\/\/www.darmklachten.nl\/en\/wp-json\/wp\/v2\/comments?post=58771"}],"version-history":[{"count":1,"href":"https:\/\/www.darmklachten.nl\/en\/wp-json\/wp\/v2\/pages\/58771\/revisions"}],"predecessor-version":[{"id":58777,"href":"https:\/\/www.darmklachten.nl\/en\/wp-json\/wp\/v2\/pages\/58771\/revisions\/58777"}],"up":[{"embeddable":true,"href":"https:\/\/www.darmklachten.nl\/en\/wp-json\/wp\/v2\/pages\/57690"}],"wp:attachment":[{"href":"https:\/\/www.darmklachten.nl\/en\/wp-json\/wp\/v2\/media?parent=58771"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}