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Shvoong Home>Medicine & Health>stages of male puberty Review

stages of male puberty

Article Review   by:harshasri     Original Author: harshasri
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Puberty is the period of time when sexual characteristics develop and sexual organs mature. There is also a significant growth spurt and the timing of that ''spurt'' can vary from person to person. Along with sexual maturation and development, a wide range of emotional changes also take place. Some boys go through this period very easily and for others it can be more difficult.Below are the physical events at each stage of development.
Growth of hair and pubic hair
Hair usually begins to grow on various parts of the body when a boy is between ages 11 and 14 years. Hair can continue to spread to other parts of the body until a young man reaches about age 20. Sparse growth of slightly pigmented pubic hair at base of penis around age 12.4 -- Adult-type hair with spread to the inside of thighs but not up the abdomen (15.3 years). Hair is typically seen on a young man''s face, underarm area, pubic area, abdomen, chest, arms, legs, and buttocks. The amount and distribution of hair can vary considerably from one man to the next -- this is entirely normal and may have genetic tendencies.
Voice Changes
As a result of increased testosterone, vocal cords become longer and thicker and the voice becomes lower. While these changes are occurring it is not unusual for the voice to change pitch abruptly or ''crack'' at times. (This can often be very embarrassing). Average age around 13.5 years, with voice ''changing'' around age 14.5
External Genital Development
Increased growth of the penis and scrotum often starts at about age 13 and continues until adult size is reached about 2 years later. Keep in mind, there is a fair degree of variation in the age for genital development from one boy to the next. Thinning and reddening of scrotum occurs around age 12 years.
Oil Glands Become Active or Overactive
Oil glands in the skin become more active - This can cause acne. Many people will have problems with acne into adulthood.
Growth Spurt and the appearance of a more muscular and angular shape
While both girls and boys will begin a rapid growth spurt sometime between the ages of 10 and 15, the growth spurt in boys usually occurs about two years after the growth spurt takes place in girls of the same age. The body takes on a new more muscular and angular shape in boys under the influence of testosterone. This generally begins around age 12.5 when testosterone causes muscle mass to increase. The greatest effect can usually be seen in the upper chest and shoulder muscles. Testosterone also causes bones to lengthen, giving young men a heavier bone structure and longer arms and legs.
Penile Erections
Males have spontaneous penis erections throughout their lives (even when they are infants). During puberty boys tend to get erections more frequently. Erections can occur with or without any physical or sexual stimulation. While this can be very embarrassing for teenage guys, especially when it happens in public, like school, it’s important to understand that it is entirely normal for this to happen.
Published: January 07, 2008   
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