Data suggest that Black men have lower mean ejaculate volumes, sperm concentration, and total motile sperm counts.
Semen Quality and Male Infertility
The sperm count in white and cloudy semen is better than watery and clear semen. Watery semen may sometimes be considered as an indicator of fertility issues in males. In most cases, clear semen is indicative of a transient problem that may resolve spontaneously.
The highest fertility levels are observed in Niger (13.6 children on average), South Sudan (13.5 children), Chad (12.1 children) and in the Sahelian countries more generally. In only four countries (South Africa, Botswana, Lesotho and Namibia) is male fertility below 6 children per man.
Dark brown or black semen may be a sign of heavier bleeding or blood that has been in the body for longer periods of time. This may occur due to a heavy injury, such as a spinal cord injury or trauma in the genitals. Sometimes, spinal cord injuries may occur without heavy bleeding and may still turn semen dark.
Sperm in the first fraction of ejaculate are more numerous, move more and present better quality DNA than those lagging behind.
Semen is normally a whitish-gray color. Changes in semen color might be temporary and harmless or a sign of an underlying condition that requires further evaluation. Possible causes, by color, include: Red semen.
The primary characteristic of healthy sperm can be indicated from its thickness. If the sperm is thick and sticky, it means that you are in good health.
Yellow semen may also indicate urine in the semen. This can be an issue that requires attention from a fertility specialist, as it may indicate infertility. Pink or reddish-brown semen suggests that you may have some bleeding from or inflammation of your prostate.
There is no specific frequency with which a man should ejaculate. There is no solid evidence that failure to ejaculate causes health problems. However, ejaculating frequently can reduce the man's risk of getting prostate cancer. Ejacu-lation can be through having sex or masturbating a few times a day.
You should see your healthcare provider any time you notice unusual body changes like yellow or brownish semen with specks. Brown or speckled semen may indicate blood in semen (hematospermia). Yellow or brown semen may not be cause for concern. But it could indicate a problem that requires treatment.
Taiwan Native Hawaiian and Pacific Islander women had the highest fertility rate of any ethnicity in the United States in 2020, with about 2,142 births per 1,000 women. The fertility rate for all ethnicities in the U.S. was 1,641 births per 1,000 women.
Finnish men had the highest sperm counts. Men from Edinburgh had the highest proportion of motile spermatozoa, followed by men from Turku, Copenhagen and Paris.
Male fertility generally starts to reduce around age 40 to 45 years when sperm quality decreases. Increasing male age reduces the overall chances of pregnancy and increases time to pregnancy (the number of menstrual cycles it takes to become pregnant) and the risk of miscarriage and fetal death.
The concentration of sperm is what makes the semen cloudy and thick, so if your ejaculate is watery it is possible that you have a low sperm count. This doesn't mean you're infertile (so precautions to prevent pregnancy still need to be taken for couples that don't want to get pregnant).
Clear, white, or grayish sperm indicates healthy sperm. In general, sperm with this color characteristic has a thick texture due to the high number of sperm. However, some men have normal sperm color yet liquid-y texture – this is known as watery sperm.
Even if everything does appear normal and healthy on the surface, you can't really tell whether your sperm is healthy just by looking at it. Scheduling an appointment with your healthcare provider to perform a semen analysis is the only way to find out for sure.
Causes of blood in semen
an infection, such as a urinary tract infection (UTI) or sexually transmitted infection (STI) a recent procedure or test, such as transurethral resection of the prostate (TURP), a cystoscopy or a vasectomy. a problem with the prostate, such as prostatitis or an enlarged prostate.
There are two types of sperm cells: X sperm and Y sperm. X sperm: X sperm on combining with the X chromosome of the female produces a zygote with XX chromosomes.
Semen can become watery or thinner than usual if someone masturbates or engages in sexual activity multiple times each day. In this case, abstaining from sexual activity for a few days may help treat the issue. Watery semen can sometimes indicate that a person has a low sperm count or reduced semen quality.
Men do not have a 'fertile window' because sperm is continually formed and stored in the testicles, ready to be used at any time. Graphic 1 shows when pregnancy is most likely to happen in people having sexual intercourse without contraception.
Fertility is most likely if the semen discharged in a single ejaculation (ejaculate) contains at least 15 million sperm per milliliter. Too little sperm in an ejaculation might make it more difficult to get pregnant because there are fewer candidates available to fertilize the egg.
For healthy semen samples collected between 5:00am and 7:30am were found to exhibit a statistically higher sperm concentration, total sperm count and a higher percentage of normally shaped sperm, compared to samples produced later in the day.
A significantly higher proportion of Black women (19.6%) had infertility secondary to tubal factors compared with White American women (6.8%; P=. 03). In addition, White American women (29.5%) had a significantly higher frequency of unexplained infertility compared with Black women (13.3%; P=. 006).
Men carrying a gene that leads to their sperm having more Y chromosomes have more sons. During times of war and large casualties of male soldiers, those families are more likely to have more surviving sons. And when those men have children, they, like their fathers, might be more likely to have baby boys.