Overall, African-American boys were more likely to enter puberty earlier than white or Hispanic boys. The earliest stage of puberty was found to occur at 9.14, 10.14 and 10.4 years in African-American, non-Hispanic whites and Hispanic boys, respectively.
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Does ethnicity affect onset of puberty?
The onset of puberty may be related to ethnicity, especially in girls. Caucasian girls tend to begin puberty later than Mexican-American and African-American girls. Puberty typically starts later for Asian-American girls than the other listed ethnicities.
Do black boys start puberty earlier?
The average age of puberty was 10 years for white boys, which is about one-and-a-half years earlier than what has long been considered “normal.” The average age was 9 years for African-American boys, about two years earlier than expected; and 10 years for Hispanic boys, which is unchanged from before.
Do Hispanics start puberty early?
Researchers have found signs of puberty in American boys up to two years earlier than previously reported — age 9 on average for blacks, 10 for whites and Hispanics (puberty is considered early in boys if it occurs by age 9 or earlier) .
What age do Asians start puberty?
In china, the age of puberty onset among children has changed (2–5) over the last two decades. The trends of puberty onset were characterized by: 1) The puberty timing has been occurring earlier in both genders. In boys, the spermarcheal age was shift to an earlier date from 14.9 years in 1995 to 13.8 years in 2005.
Do black girls start period earlier?
While the average age of a girl’s first period still hovers around 12, a new study shows black girls start menstruating an average of three months earlier than white girls.
Why do some boys start puberty early?
Causes of early puberty in boys are similar to girls, and include thyroid disorders, abnormal brain structure, exposure to radiation therapy, and certain genetic conditions. It may also be caused by tumors of the brain, testis, liver, and/or adrenal glands.
Why do some people start puberty earlier?
Sometimes, genetic mutations that trigger the release of sex hormones can lead to precocious puberty. Most often, these children have a parent or sibling with similar genetic problems. Race. Researchers don’t know why, but on average, African American girls seem to start puberty about a year earlier than white girls.
What is the average age for a boy to hit puberty?
The average age for girls to start puberty is 11, while for boys the average age is 12. But it’s perfectly normal for puberty to begin at any point between the ages of 8 and 13 in girls and 9 and 14 in boys.
Do Hispanic girls hit puberty earlier?
Hispanic girls are hitting puberty at an average age of 9.3 years, a younger time frame compared to non-Hispanic white girls and girls of Asian descent, according to data published in the journal Pediatrics.
Do Hispanic girls mature faster?
Black and Hispanic girls continue to mature faster than white girls, on average. Nearly one-quarter of black girls and 15 percent of Hispanic girls had entered puberty by age 7, according to the new study, which appears in the journal Pediatrics.
Does early puberty affect height?
Children with precocious puberty may grow quickly at first and be tall, compared with their peers. But, because their bones mature more quickly than normal, they often stop growing earlier than usual. This can cause them to be shorter than average as adults.
Does milk cause early puberty?
Fact: There is no scientific evidence that drinking milk causes early puberty. In the United States, girls are entering puberty at younger ages than they were in the first half of the 20th century. Researchers do not know the exact trigger for early-onset puberty, although it is likely influenced by many factors.
Is 9 years old too early for period?
Menstruation typically begins at about age 12, but periods are possible as early as age 8. That’s why it’s important to discuss this topic early.
Is 11 early to get your period?
Most girls start their periods when they’re about 12, but they can start as early as 8, so it’s important to talk to girls from an early age to make sure they’re prepared. Respond to questions or opportunities as they arise and do not be embarrassed. Periods are natural.
Is my daughter developing too early?
Talk to your doctor if your child shows any signs of early sexual maturation (before age 7 or 8 in girls or age 9 in boys), including: breast development. rapid height growth. menstruation.
Can a 4 year old get her period?
“It is not uncommon for girls to start their period as young as 8 or 9,” says Dr. Sara Kreckman, UnityPoint Health pediatrician. “This can be both emotionally and mentally challenging for girls this young, as well as their parents.”
What foods causes early puberty?
High protein intake elevates IGF-1 levels and promotes growth, which could accelerate the onset of puberty. Poor diet. Children with lower-nutrient diets tend to enter puberty earlier. A diet rich in processed foods and meats, dairy, and fast food is disruptive to normal physical development.
What stage of puberty is armpit hair?
Tanner stages summary
| Tanner stages in males | Age at the start | Noticeable changes |
|---|---|---|
| Stage 2 | Around age 11 | Pubic hair starts to form |
| Stage 3 | Around age 13 | Voice begins to change or “crack”; muscles get larger |
| Stage 4 | Around age 14 | Acne may appear; armpit hair forms |
| Stage 5 | Around age 15 | Facial hair comes in |
What is pre puberty called?
Key points about precocious puberty
Puberty that happens early is called precocious puberty. This means a child’s physical signs of sexual maturity develop too soon. Precocious puberty happens before age 8 in girls, and before age 9 in boys. Signs can include breast growth, pubic hair, and voice changes.
What are the early signs of puberty?
When your daughter starts to go through puberty, her gonads (ovaries) and adrenal glands (glands that sit on top of the kidneys) release hormones. These hormones cause the first signs of puberty, which are breast development, body odor, underarm hair, pubic hair and acne (pimples).