What is Delayed Puberty in Boys?

Delayed puberty is when your son does not show the first signs of puberty by the time he is 14 years old.

What is Normal Puberty?

Normal puberty is when children’s bodies start to grow and develop into young adult bodies. Boys usually start to go through puberty between the ages of 9-14 years. When your son starts to go through puberty, his gonads (testes) and adrenal glands (glands that sit on top of the kidneys) release hormones. These hormones cause the first signs of puberty, which are an increase in the size of the testes and length of the penis, body odor, underarm hair, pubic hair and acne (pimples). Over time, boys will develop later signs of puberty, such as increased muscle mass, stronger bones, a deeper voice and a growth spurt.

There are 2 types of puberty that make up the entire pubertal process. These are:

  • Adrenal puberty
    This is when the adrenal glands make hormones that cause the first signs of puberty including body odor, underarm hair, pubic hair and acne (pimples).
  • Gonadal puberty
    This is when the pituitary gland (a small gland in the brain that controls other glands in the body) makes hormones (FSH and LH), which tell the testes to increase in size and make testosterone.

What are the Differences Among Sex, Gender Expression and Gender Identity?

Sex, gender expression and gender identity might sound similar, but they are actually very different terms.

  • Sex refers to the biology (chromosomes [DNA], genitalia and hormones) that a person is born with.
  • Gender identity refers to how a person identifies, such as male, female, transgender or a number of other terms.
  • Gender expression refers to how a person expresses their gender through their appearance (clothing, hair, makeup, etc.), behavior, names, etc.

The language around gender changes all the time. If you are not sure what to call someone, just ask! Gender was once referred to as binary, or simply male and female. This is not true anymore. Gender is a spectrum. There are many terms a person can use to refer to their gender. Gender is also a lifelong process of self-discovery and expression.

At MGHfC, we welcome patients of all genders and sexes. If you have questions about gender and/or sex and how it relates to your child’s pubertal development, ask the care team.

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