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The child with micropenis.

P S Menon1, U A Khatwa

  • 1Department of Pediatrics, All India Institute of Medical Sciences, New Delhi.

Indian Journal of Pediatrics
|August 10, 2000
PubMed
Summary
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Micropenis, an extremely small penis, requires accurate measurement and evaluation. Testosterone therapy often leads to satisfactory penile growth and sexual function in children.

Area of Science:

  • Pediatric Endocrinology
  • Urology
  • Genetics

Background:

  • Micropenis is defined as a stretched penile length more than 2.5 standard deviations below the mean for age.
  • Accurate stretched penile measurement and age-specific nomograms are crucial for diagnosis.
  • It must be differentiated from buried penis and aphallia.

Purpose of the Study:

  • To outline the diagnostic criteria and etiological classification of micropenis.
  • To discuss the evaluation and management strategies for micropenis.
  • To highlight the efficacy of hormonal therapy and the limited role of surgery.

Main Methods:

  • Utilizing stretched penile length measurements and age-specific nomograms.
  • Classifying etiology into hypogonadotropic hypogonadism, hypergonadotropic hypogonadism, partial androgen insensitivity syndrome, and idiopathic groups.

Related Experiment Videos

  • Employing GnRH/hCG stimulation tests and chromosomal studies for etiological evaluation.

    • Main Results:

    • Testosterone therapy in prepubertal children, including transdermal dihydrotestosterone (DHT), shows satisfactory gains in penile length.
    • Hormonal therapy is effective for associated conditions like GH deficiency in hypopituitarism.
    • Surgical correction is generally not indicated for endocrine-related micropenis.

    Conclusions:

    • Early and accurate diagnosis of micropenis is essential for appropriate management.
    • Hormonal therapies, particularly testosterone, are effective in improving penile length and function.
    • Surgical intervention is rarely necessary, with hormonal treatment being the mainstay of management.