There are slightly more males than females globally, with about 101 males for every 100 females, a trend seen since the mid-1960s, though the numbers are very close to a 1:1 ratio and expected to balance by 2050 due to lower male survival rates at older ages. At birth, there's a natural slight skew towards more boys (around 105 males per 100 females), but higher male mortality in childhood and adulthood leads to more women in older age groups, with some countries having significantly more women.
The number of men and women in the world is roughly equal, though men hold a slight lead with 102 men for 100 women (in 2020).
The world's population is not evenly split between men and women. 🌍 • Globally, the sex ratio is about 102 men for every 100 women (2025 estimate). This means men slightly outnumber women, though the balance changes by age and region. At birth: More boys are born than girls (about 105 boys per 100 girls).
Global population 2000-2024, by gender
Over the past 24 years, there were constantly more men than women living on the planet. Of the 8.06 billion people living on the Earth in 2024, 4.09 billion were men and 4.05 billion were women.
According to National Family Health Survey, 2020-21 (NFHS-5) India's Sex ratio in 2022 is 1020 females per 1000 males. The sex ratio is 1037 in rural areas and 985 females for every 1000 males in urban areas.
A child's biological sex at birth may not be a 50-50 toss-up, according to a new study from Harvard T.H. Chan School of Public Health. The study, published July 18 in the journal Science Advances, found that birth sex appears to be associated with maternal age, certain genes, and the sexes of older siblings.
The results of the present study revealed that the first stage of labor was slower in women with male fetuses than those who carried female fetuses (Mean duration in female fetuses was 2.4 and it was 3.4 in male fetuses).
As of 2025, India's population stands at approximately 1.44 billion, including 743.39 million males and 698.29 million females. This gives a sex ratio of about 106 males per 100 females. Men make up 51.56% of the population, while women account for 48.44%—a difference of around 45 million more men than women.
In humans, the natural sex ratio at birth is slightly biased towards the male sex. It is estimated to be about 1.05 worldwide or within a narrow range from 1.03 to 1.06 males per female at birth. The sex ratio for the entire world population including all ages is approximately 101 males to 100 females as of 2024.
There are large variations of size among humans but in all populations, men are larger on average than women. For most biologists this fact can be easily explained by the same processes that explain the size dimorphism in large mammals in general and in apes in particular.
Construction and repair roles, protective services and technical roles remain overwhelmingly male, while healthcare and teaching not only have few men, but have a declining share of men.
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In reality, the probability of having a boy is slightly higher: on average, 105 boys are born for every 100 girls.
They found that women with all daughters tended to have specific variants of the NSUN6 gene on chromosome 10, whereas women with only sons tended to have specific variants of the TSHZ1 gene on chromosome 18.
Whilst most couples are happy with either a boy or a girl baby, as long as it is healthy and strong, some are keen to try to sway the odds of having a boy, if they can. Just remember that there are no guarantees and the odds of conceiving a boy or a girl are almost exactly the same for each and every pregnancy.
A century ago, there were less than two years between men's and women's life expectancies in the United States. Today, that gender gap has almost tripled, with men dying 5.3 years earlier than women in 2023.
Globally, the number of males has exceeded the number of females since the mid-1960s. But by 2050, the worldwide sex ratio is expected to even out, according to recently released population projections from the United Nations. As of 2021, there were about 44 million more males than females in the global population.
In India, the Supreme Court in April 2014 recognised hijras, transgender people, eunuchs, and intersex people as a "third gender" in law.
In fact, researchers say that if the mom-to-be is carrying a baby girl, she can expect heightened inflammation in her body that will cause her more discomfort and possibly greater exposure to disease. So this could explain the extra aches and pains and even morning sickness many moms deal with while pregnant.
The energy intake of pregnant women is about 10% higher when they are carrying a boy rather than a girl. Our findings support the hypothesis that women carrying male rather than female embryos may have higher energy requirements and that male embryos may be more susceptible to energy restriction.
'The phenomenon of female neonates being hardier than their male counterparts is well recognised. This research shows this is due to a fundamental genetic advantage which may also contribute to more effective responses to infection and disease throughout the human lifecycle'.
Though women's natural fertility ends with menopause, giving us a defined period of time to study, men continue to produce sperm until the very end of their lives, making pregnancy possible from the sperm of 50-year-olds (and 80-year-olds).
Females will only have X sex chromosomes, and so each of her eggs will have 22 chromosomal pairs and an X sex chromosome. Males carry both an X and Y sex chromosomes, and each individual sperm will carry 22 chromosomal pairs and have an X on one side with a Y on the other.
Herein we report the extraordinary case of a fertile woman with normal ovaries and a predominantly 46,XY ovarian karyotype, who gave birth to a 46,XY female with complete gonadal dysgenesis.
In all countries, there are more male than female births, although the extent of this varies by country as we will see below. This means that all else being equal, we would expect the male share of the population to be higher.