What r the steps boys go through during puberty?

Question

just trying to gather info here so i can talk to my 10 year old about it.

Answer 1

The physical changes of puberty in boys

Testicular size, function, and fertility
In boys, testicular enlargement is the first physical manifestation of puberty (and is termed gonadarche). Testes in prepubertal boys change little in size from about 1 year of age to the onset of puberty, averaging about 2–3 cc in volume and about 1.5-2 cm in length. Testicular size continues to increase throughout puberty, reaching maximal adult size about 6 years later. While 18-20 cc is reportedly an average adult size, there is wide variation in the normal population.

The testes have two primary functions: to produce hormones and to produce sperm. The Leydig cells produce testosterone (as described below), which in turn produces most of the changes of male puberty. However, most of the increasing bulk of testicular tissue is spermatogenic tissue (primarily Sertoli and interstitial cells). The development of sperm production and fertility in males is not as well documented. Sperm can be detected in the morning urine of most boys after the first year of pubertal changes (and occasionally earlier).


Genitalia
A boy's penis grows little from the fourth year of life until puberty. Average prepubertal penile length is 4 cm. The prepubertal genitalia are described as stage 1. Within months after growth of the testes begins, rising levels of testosterone promote growth of the penis and scrotum. This earliest discernible beginning of pubertal growth of the genitalia is referred to as stage 2. The penis continues to grow until about 18 years of age, reaching an average adult size of about 7-14 cm.

Although erections and orgasm occur in prepubertal boys, they become much more common during puberty, accompanied by a markedly increased libido. Ejaculation becomes possible early in puberty; prior to this boys may experience dry orgasms. Emission of seminal fluid may occur due to masturbation or spontaneously during sleep (commonly termed a wet dream, and more clinically called a nocturnal emission). The ability to ejaculate is a fairly early event in puberty compared to the other characteristics. However, in parallel to the irregularity of the first few periods of a girl, for the first one or two years after a boy's first ejaculation, his seminal fluid may contain few active sperm.


Pubic hair in boys
Pubic hair often appears on a boy shortly after the genitalia begin to grow. As in girls, the first appearance of pubic hair is termed pubarche and the pubic hairs are usually first visible at the dorsal (abdominal) base of the penis. The first few hairs are described as stage 2. Stage 3 is usually reached within another 6–12 months, when the hairs are too numerous to count. By stage 4, the pubic hairs densely fill the "pubic triangle." Stage 5 refers to spread of pubic hair to the thighs and upward towards the umbilicus as part of the developing abdominal hair.


Body and facial hair in boys
In the months and years following the appearance of pubic hair, other areas of skin which respond to androgens develop heavier hair in roughly the following sequence: underarm (axillary) hair, perianal hair, upper lip hair, sideburn (preauricular) hair, periareolar hair, and the rest of the beard area. Arm, leg, chest, abdominal, and back hair become heavier more gradually. There is a large range in amount of body hair among adult men, and significant differences in timing and quantity of hair growth among different ethnic groups.


Voice change
Under the influence of androgens, the voice box, or larynx, grows in both genders. This growth is far more prominent in boys, causing the male voice to drop, rather abruptly, about one octave, probably because the larger vocal folds have a lower fundamental frequency. Occasionally, this is accompanied by cracking and breaking sounds in the early stages. Most of the voice change happens during stage 4 of male puberty around the time of peak growth. However, it usually precedes the development of significant facial hair by several months to years.


Height growth in boys
Compared to girls' early growth spurt, growth accelerates more slowly in boys and lasts longer, resulting in a taller adult stature among males than females (on average about 10 cm or 4 inches). The difference is attributed to the much greater potency of estradiol compared to testosterone in promoting bone growth, maturation, and epiphyseal closure. In boys, growth begins to accelerate about 9 months after the first signs of testicular enlargement and the peak year of the growth spurt occurs about 2 years after the onset of puberty, reaching a peak velocity of about 8.5–12 cm or 3.5–5 inches per year. The feet and hands experience their growth spurt first, followed by the limbs, and finally ending in the trunk. Epiphyseal closure and adult height are reached more slowly, at an average age of about 17.5 years. As in girls, this last growth primarily involves the spine rather than the limbs.


Male musculature and body shape
By the end of puberty, adult men have heavier bones and nearly twice as much skeletal muscle. Some of the bone growth (e.g., shoulder width and jaw) is disproportionately greater, resulting in noticeably different male and female skeletal shapes. The average adult male has about 150% of the lean body mass of an average female, and about 50% of the body fat.

This muscle develops mainly during the later stages of puberty, and muscle growth can continue even after a male is biologically adult. The peak of the so-called "strength spurt," the rate of muscle growth, is attained about one year after a male experiences his peak growth rate.


Body odor, skin changes, acne
Rising levels of androgens can change the fatty acid composition of perspiration, resulting in a more "adult" body odor. As in girls, another androgen effect is increased secretion of oil (sebum) from the skin and the resultant variable amounts of acne.


Breast development in boys: pubertal gynecomastia
Estradiol is produced from testosterone in male puberty as well as female, and male breasts often respond to the rising estradiol levels. This is termed gynecomastia. In most boys, the breast development is minimal, similar to what would be termed a "breast bud" in a girl, but in many boys, breast growth is substantial. It usually occurs after puberty is underway, may increase for a year or two, and usually diminishes by the end of puberty. It is increased by extra adipose tissue if the boy is overweight.

Although this is a normal part of male puberty for perhaps half of boys, breast development is usually as unwelcome as upper lip hair in girls, and can be removed surgically if the boy's distress is substantial.

Answer 2

Steps Of Male Puberty

Answer 3

Step 1 - Deeper voice
Step 2 - Erections
Step 3 - Pubic Hair
Step 4 - Semen and Nocturnal Emissions
Step 5 - are you SURE you want to talk to your 10 year old about it?

Answer 4

1

Answer 5

I will comment on THE NURSE.... best advise. I have a son that will be twelve soon and I will tell you that ten is not too early to be talking to him. I waited too long and by the time I started to talk to my son he already knew.(the school had shown a video to the fifth grade regarding puberty) I wish I would have been the one that had talked to him first, but I think that he had more accurate descriptions than I could have done. I would call the school that your boy attends and see when they do this (I believe all schools do). If they do not show a video or give any education on puberty and what stages to expect (for the children) then you can go to the public library where you live and get a book that will tell you everything. Or, you could go online.
I know that it is hard for a single mother to explain to her son about things that she has not been through. It is much different for girls.

Good luck and don't sweat it.

Answer 6

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Answer 7

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Answer 8

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Answer 9

Step 1 - Deeper voice
Step 2 - Erections
Step 3 - Pubic Hair
Step 4 - Semen and Nocturnal Emissions
Step 5 - are you SURE you want to talk to your 10 year old about it?

Answer 10

Check out Wikipedia.com and search for puberty.

Answer 11

10 years old is a little early but he is probably questioning his involvement with girls. He might be wanting to play with it because he's just discovered it. Be sure to explain about it being a normal thing but also set guidelines for a smoother transition to a sexual being rather than a reactionary one. Be careful of people visiting the house too. Be very wary of strangers who might want to hurt him or behavior which might attract those sorts of people. Above all, do your best, talk to lots of folks and do some reading. Good luck.