Semen is typically whitish-gray with a jelly-like texture, but it can fluctuate due to different factors. For example, certain infections may make your semen look more yellow or green.
Your semen is made up of a variety of minerals, proteins, hormones, and enzymes. They all contribute to the color and texture of your ejaculate.
Unless you’re experiencing other symptoms, temporary changes in the color of your semen usually aren’t a cause for concern. But if color changes are persistent or occurring alongside other symptoms, such as pain, talk with a doctor.
Many different conditions — including infections, changes in blood pressure, or exposure to heavy metals — can affect your semen color. Sometimes these conditions can be ruled out based on your individual circumstances.
A sexually transmitted infection (STI), for example, can generally be eliminated if you’ve never engaged in partnered sexual contact.
The following chart is a good starting point, but it isn’t a substitute for medical advice. It’s best to consult with a doctor if you’re unable to pinpoint a cause or if you’re unsure of your health status.
| Yellow-green semen | Pinkish-red semen | Orange-brown semen | Black semen | |
|---|---|---|---|---|
| Heavy metals | X | X | ||
| High blood pressure | X | |||
| Jaundice | X | |||
| Leukocytospermia | X | |||
| Prostate biopsy or surgery | X | X | ||
| Prostate or testicular cancer | X | X | ||
| Prostatitis | X | X | X | |
| Sexually transmitted infection | X | X | ||
| Spinal cord injury | X | X | ||
| Substance use | X | |||
| Urine | X |
Clear, white, or slightly gray semen is usually considered healthy.
Urine
A blockage can keep urine from completely leaving your urethra — the tube that drains urine out of your bladder — when you pee. This is known as urinary retention.
Semen passing through the urethra can get mixed with trapped or leftover urine, giving your semen a yellowish tint. This is most common if you ejaculate shortly after you pee.
Some causes may require medical attention, including:
Prostate infection
Yellow semen can be caused by a prostate infection (prostatitis). This can happen when bacteria from your urinary tract get into your prostate gland.
Other symptoms may include:
- difficulty peeing
- pain when peeing
- feeling the need to pee often
- lower abdominal pain
- pain in your lower back
- pain during ejaculation
- fever or chills
Consult a healthcare professional if you suspect prostatitis.
Leukocytospermia
Leukocytospermia happens when too many white blood cells (leukocytes) are present in your semen. This can tint your semen yellow.
Causes include autoimmune disorders and bacterial or viral infections.
Consult a healthcare professional if you suspect leukocytospermia. Some causes, like certain STIs, can result in infertility if left untreated.
Jaundice
Jaundice happens when too much bilirubin builds up in your body. Bilirubin is a yellowish pigment left behind when your liver breaks down red blood cells.
The most common symptom is yellowing of your skin and the whites of your eyes, but it can turn your semen yellow, too. Your urine may also become darker than usual.
Other symptoms of jaundice include chills, fever, and abdominal pain.
Consult a healthcare professional if you suspect jaundice.
A pink or red tinge is usually a symptom of fresh blood. A brownish or orange tinge is typically a symptom of older bloodshed. Blood may turn this color after it has been exposed to oxygen.
Bloody semen is known as hematospermia.
Infection, including STIs and prostatitis
Chlamydia, gonorrhea, and other STIs can cause blood to appear in your semen when left untreated.
Other STI symptoms can include:
- pain or burning while peeing
- pain or swelling in your testicles
- itchy, irritating, or painful rash
- discharge from your urethra
Bloody semen may also be associated with prostatitis.
Consult a healthcare professional if you suspect an underlying infection. Certain STIs can result in infertility if left untreated.
Hypertension
Hypertension (high blood pressure) can sometimes cause blood to appear in your semen, especially if the condition isn’t managed.
In severe cases, you may also experience broken blood vessels in the eye, shortness of breath, nosebleeds, or headaches.
Consult a healthcare professional if you suspect hypertension.
Prostate biopsy or surgery
A prostate biopsy involves taking a tissue sample from your prostate gland. The procedure may introduce blood into your urinary tract or ejaculatory ducts, where it can mix with your semen and cause it to turn reddish, pinkish, or brownish.
This can also happen after prostate surgery.
Consult your physician if you have questions or concerns following a prostate procedure.
Prostate or testicular cancer
In
Early diagnosis and treatment are essential, so talk with a healthcare professional if you have concerns.
Black semen is often related to hematospermia. Black blood is generally old blood that’s been in your body for a while.
Spinal cord injuries
Injuries to your spinal cord may result in dark brown- or black-colored semen.
Although the exact reason is unknown, a
If you haven’t already, consult a healthcare professional about your injury. They can assess whether it’s causing certain symptoms or if they’re the result of another underlying condition.
Heavy metals
An older
This may result from exposure to contaminated food, water, or other environmental factors.
Consult a healthcare professional if you think you’ve been exposed to heavy metals.
Healthy semen is typically viscous, or jelly-like. You may experience slight variances in texture depending on:
- the length of time since you last ejaculated
- your cannabis use
- your alcohol consumption
- your diet
Unless you’re experiencing other unusual symptoms, a temporary change in texture usually isn’t cause for concern.
Thick or chunky semen
Thick semen could be an indication of severe dehydration, hormonal imbalance, or infection.
Very thick semen can result in infertility because it prevents the sperm from moving effectively toward the egg.
Thin or watery semen
Watery semen may be a symptom of a vitamin deficiency or infertility.
The semen may look
Consult a healthcare professional if you notice persistent color changes in your semen or if you also notice one or more of the following symptoms:
- burning during urination
- difficulty or complete inability to urinate
- heat, heaviness, or swelling around your genital area
- rash or irritation on your penis or scrotum
- discharge that isn’t pre-ejaculate or ejaculate
- strong, foul genital odor
Your clinician may perform a penile and testicular exam and swab the tip of the penis to take a fluid sample for lab testing. They may also ask for a blood, urine, or semen sample.
You can start with a primary care doctor. If the reason for your symptoms is still unclear, they may refer you to a urologist for additional testing and care.
Your semen may show slight color changes throughout your life, even when you’re in good health.
If your semen changes significantly in color, consistency, amount, or smell, consult a healthcare professional. Likewise, if your ejaculate is accompanied by an itch or pelvic pain, it’s time to talk with a doctor.