1.0inviTRAhttps://www.invitra.com/enrich600338<blockquote class="wp-embedded-content" data-secret="p8QF9DkFQg"><a href="https://www.invitra.com/en/post-vasectomy-semen-analysis/">Post Vasectomy Semen Analysis – How Many Tests to Confirm Sterility?</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.invitra.com/en/post-vasectomy-semen-analysis/embed/#?secret=p8QF9DkFQg" width="600" height="338" title="“Post Vasectomy Semen Analysis – How Many Tests to Confirm Sterility?” — inviTRA" data-secret="p8QF9DkFQg" 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); //# sourceURL=https://www.invitra.com/en/wp-includes/js/wp-embed.min.js </script> https://www.invitra.com/en/wp-content/uploads/2018/03/post-vasectomy-sperm-tests.png24001020After a vasectomy, various semen analyses are needed as a control to ensure the prodecure has worked and there are no sperm present in the semen. If after some time there are still sperm in the ejaculate, then it would mean that the vasectomy has not been successful.