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Sub-Category:

Precocious puberty

Specialty: Pediatrics

Symptoms:
early breast development in girls; early testicular and penile enlargement in boys; rapid growth; early appearance of pubic or underarm hair; acne; body odor

Root Cause:
Early activation of the hypothalamic-pituitary-gonadal (HPG) axis or peripheral causes such as hormone-secreting tumors or exogenous hormone exposure.

How it's Diagnosed: videos
Physical exam, bone age X-ray, hormone level tests (LH, FSH, estradiol, testosterone), GnRH stimulation test, and imaging studies (e.g., MRI or ultrasound) to identify underlying causes.

Treatment:
Treat the underlying cause; GnRH analogs (e.g., leuprolide) are commonly used to delay further puberty progression.

Medications:
Leuprolide or triptorelin (GnRH analogs) suppress the premature activation of the HPG axis. These are classified as gonadotropin-releasing hormone agonists.

Prevalence: How common the health condition is within a specific population.
Occurs in about 1 in 5,000–10,000 children; more common in girls than boys.

Risk Factors: Factors or behaviors that increase the likelihood of developing the condition.
Female gender, obesity, family history of precocious puberty, brain abnormalities (e.g., tumors, trauma, infections), or exposure to sex hormones.

Prognosis: The expected outcome or course of the condition over time.
Treatment can halt or reverse early pubertal changes, allowing for normal growth and development; untreated, it may lead to short stature and psychosocial challenges.

Complications: Additional problems or conditions that may arise as a result of the original condition.
Short adult height due to early closure of growth plates, psychological distress, and social challenges due to premature physical development.

Delayed puberty

Specialty: Pediatrics

Category: Endocrine Disorders

Sub-category: Puberty Disorders

Symptoms:
lack of breast development in girls by age 13; lack of testicular enlargement in boys by age 14; short stature; delayed or absent pubic hair; absence of menstruation in girls by age 16

Root Cause:
Delay in the activation of the hypothalamic-pituitary-gonadal (HPG) axis, often due to constitutional growth delay, chronic illness, or hormonal deficiencies (e.g., hypogonadism).

How it's Diagnosed: videos
Detailed history, physical exam, bone age X-ray, blood tests (LH, FSH, testosterone, estradiol), and imaging studies (e.g., MRI of the brain or pelvic ultrasound).

Treatment:
Treatment depends on the cause; may include hormone replacement therapy (e.g., testosterone or estrogen) or addressing underlying health conditions.

Medications:
Testosterone injections or patches for boys, and low-dose estrogen therapy (e.g., estradiol patches or oral contraceptives) for girls. Testosterone and estradiol are classified as sex hormones.

Prevalence: How common the health condition is within a specific population.
Affects about 2% of adolescents; more common in boys.

Risk Factors: Factors or behaviors that increase the likelihood of developing the condition.
Family history of delayed puberty, chronic illness (e.g., cystic fibrosis, celiac disease), malnutrition, or hormonal disorders (e.g., Kallmann syndrome).

Prognosis: The expected outcome or course of the condition over time.
Constitutional growth delay typically resolves without treatment; other causes may require intervention but have a good prognosis if treated appropriately.

Complications: Additional problems or conditions that may arise as a result of the original condition.
Psychosocial challenges, low bone density, and potential infertility if untreated hormonal deficiencies persist.