Overview
Delayed puberty refers to a delay in the onset of secondary sexual characteristics beyond the typical age range, affecting both males and females. In females, puberty typically begins between ages 8.0 to 14.9 years, while in males, it starts between ages 9.7 to 14.1 years 7.Diagnosis
Key Diagnostic Criteria: Delay in the onset of secondary sexual characteristics beyond the normal age range.
Recommended Tests:
- Assessment of growth velocity and bone age.
- Hormonal evaluations including LH, FSH, estradiol (females), testosterone (males), and thyroid function tests 3.
Grading:
- Tanner staging for secondary sexual characteristics.
- Use of height velocity and bone age to assess progression 5.Management
First-Line Treatments:
- Observation for spontaneous onset in cases where delay is mild and not associated with underlying pathology.
- Hormonal therapy (e.g., GnRH analogs) in cases of significant delay or underlying hormonal deficiencies 3.
Adjunctive Treatments:
- Nutritional support and management of obesity, especially in cases influenced by maternal pre-pregnancy BMI 1.
- Counseling and psychological support for affected individuals and families 2.Special Populations
Pregnancy: Maternal obesity, smoking, and alcohol intake during pregnancy may influence pubertal timing in offspring 1.
Pediatrics: Self-reported assessments using tools like the Pubertal Development Scale (PDS) can be unreliable in certain populations, such as urban Black South African youth 4.
Comorbidities: Delayed language development may require specialized auditory processing interventions, though not directly related to puberty timing 6.Key Recommendations
Monitor pubertal development closely, considering hormonal assessments and bone age to differentiate between normal variation and delayed puberty (Evidence: Moderate 35).
Address modifiable risk factors such as maternal obesity and lifestyle factors during pregnancy to potentially influence pubertal timing (Evidence: Moderate 1).
Provide comprehensive counseling and support to families dealing with delayed puberty, recognizing the psychological impact (Evidence: Expert opinion 2).References
1 Brix N, Ernst A, Lauridsen LLB, Parner ET, Arah OA, Olsen J et al.. Maternal pre-pregnancy body mass index, smoking in pregnancy, and alcohol intake in pregnancy in relation to pubertal timing in the children. BMC pediatrics 2019. link
2 Claudio L, Gilmore J, Roy M, Brenner B. Communicating environmental exposure results and health information in a community-based participatory research study. BMC public health 2018. link
3 Plant TM. Neuroendocrine control of the onset of puberty. Frontiers in neuroendocrinology 2015. link
4 Norris SA, Richter LM. Are there short cuts to pubertal assessments? Self-reported and assessed group differences in pubertal development in African adolescents. The Journal of adolescent health : official publication of the Society for Adolescent Medicine 2008. link
5 Hägg U, Karlberg J, Taranger J. The timing of secondary sex characters and their relationship to the pubertal maximum of linear growth in girls. Swedish dental journal 1991. link
6 Alexander DW, Frost BP. Decelerated synthesized speech as a means of shaping speed of auditory processing of children with delayed language. Perceptual and motor skills 1982. link
7 Lee PA. Normal ages of pubertal events among American males and females. Journal of adolescent health care : official publication of the Society for Adolescent Medicine 1980. link80005-2)