We are independent & ad-supported. We may earn a commission for purchases made through our links.
Advertiser Disclosure
Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.
How We Make Money
We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently of our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.

What Are the Common Causes of Mucus in Semen?

By Erin J. Hill
Updated Mar 03, 2024
Our promise to you
The Health Board is dedicated to creating trustworthy, high-quality content that always prioritizes transparency, integrity, and inclusivity above all else. Our ensure that our content creation and review process includes rigorous fact-checking, evidence-based, and continual updates to ensure accuracy and reliability.

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

Editorial Standards

At The Health Board, we are committed to creating content that you can trust. Our editorial process is designed to ensure that every piece of content we publish is accurate, reliable, and informative.

Our team of experienced writers and editors follows a strict set of guidelines to ensure the highest quality content. We conduct thorough research, fact-check all information, and rely on credible sources to back up our claims. Our content is reviewed by subject-matter experts to ensure accuracy and clarity.

We believe in transparency and maintain editorial independence from our advertisers. Our team does not receive direct compensation from advertisers, allowing us to create unbiased content that prioritizes your interests.

Most cases of mucus in semen are totally normal, as there is naturally a certain amount of mucus present in healthy seminal fluids. Men should not normally be concerned if a small amount of mucus is detected upon ejaculation. The main issues with mucus in semen are when the substance is yellow, green, or bloody in color. This could indicate an underlying infection or illness.

Semen is a sticky substance that is comprised of various proteins, sugars, and other biological materials. It is released from the male penis during ejaculation, and it also contains millions of spermatozoa. The semen acts to nurture and nourish sperm cells as they make their way through the female reproductive tract toward the fallopian tubes for the purpose of egg fertilization. In many cases, mucus in semen will be detected. This is normal and acts to help protect and mobilize sperm cells.

Cases where mucus in semen would be a problem involve semen that is an unusual color. While pale yellow semen can sometimes be considered normal, any other variation outside of a normal white shade should be cause for alarm. This is especially true if additional symptoms are present, since this could be an indicator of disease. Sexually transmitted infections are frequent causes for unusually colored semen. Burning, itching, oozing, and blisters are also common with many sexually transmitted diseases.

Yellow semen can be considered normal, or it may mean that urine has leaked into the semen prior or during ejaculation. If there are no other symptoms present and the yellow color is pale, there may be no problem. Yellow mucus in semen could also be pus, which is a sign of serious infection. Males with yellow semen should seek medical care immediately.

Dark green or blood-tinged semen are also signs of infection. The tip of the urethra can become irritated and inflamed with many sexually transmitted diseases, and bleeding may occur during urination or ejaculation. If these or any other symptoms become noticeable, men should be tested for common sexually transmitted infections. Less common health conditions may also cause similar symptoms, although they will typically be accompanied by other symptoms.

Aside from color, there are other ways to determine semen health. Seminal fluids should not have a strong odor, nor should they be watery in nature. Normal semen is thick when it is released and then becomes more watery over time. It is also usually white in color, although more transparent can also be normal. Any variation from a man's usual semen may be cause for concern, even if no other symptoms are present at the time.

The Health Board is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Link to Sources
Discussion Comments
By anon973215 — On Oct 09, 2014

@ddljohn: Then your partner might have been with someone else, if it s an STD, that is! Hope not.

By ysmina — On Oct 29, 2013

@ddljohn-- I'm not entirely sure about this but I think that STDs usually cause green semen, rather than yellow. I might be wrong though.

I do know that green mucus in semen is a sign of gonorrhea.

By literally45 — On Oct 28, 2013

@ddljohn-- You can't know for sure what is causing the yellow mucus in your semen until you see a doctor. They need to take a sample and send it to the lab to test for infections.

It sounds like a case of prostatitis to me though. I had prostatitis with the same symptoms that you have now. In my case, the yellow mucus was urine leaking into the prostate and changing the color of my semen. The urine also caused an infection and that's what causes urination problems. See a doctor right away to get treated.

They will probably do an STD test just to be on the safe side. But STDs are not the only cause of this condition, so don't jump to conclusions.

By ddljohn — On Oct 28, 2013

I have had yellow semen for the past few weeks now. I don't have pain while urinating but there is something wrong with the flow of urine. It starts and stops without me trying. What do these symptoms point to?

I hope that it's not an STD. I'm not sure how that could be because I have only been with the same partner for the past five years.

The Health Board, in your inbox

Our latest articles, guides, and more, delivered daily.

The Health Board, in your inbox

Our latest articles, guides, and more, delivered daily.