1.0Reference.comhttps://www.reference.comStaff Writerrich600338<blockquote class="wp-embedded-content" data-secret="C2bPHA1zK3"><a href="https://www.reference.com/world-view/causes-distended-upper-abdomen-a5f1dc127da47bff">What Causes a Distended Upper Abdomen?</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.reference.com/world-view/causes-distended-upper-abdomen-a5f1dc127da47bff/embed#?secret=C2bPHA1zK3" width="600" height="338" title="“What Causes a Distended Upper Abdomen?” — Reference.com" data-secret="C2bPHA1zK3" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); </script> https://www.reference.com/wp-content/uploads/sites/2/2023/12/7cf2e1b24bbf289a43bf4e925b1f9c8a.jpg1400787A distended upper abdomen, also known as diastasis recti, is typically caused by the stretching and resultant thinning of the linea alba tissues along the front wall of the stomach, according to Twiniversity. The linea alba tissues are connective tissues that join the intra-abdominal muscles together.