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Cited by 9Urological Disorders and TreatmentsSexual Differentiation and DisordersGenital Health and Disease

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Stretched penile length and total serum testosterone in term male neonates

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John Kareem, Abiodun, Elutayo Elusiyan, Jerome Boluwaji, Kareem, Adesola Olawumi·2020·Pan African Medical Journal
DOI 10.11604/pamj.2020.37.61.21123PMC PMC7680247
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Abstract

INTRODUCTION: the reference values of stretched penile length vary with different ethnic group. There is paucity of data on the reference range of total serum testosterone in neonates especially in Africa. This study therefore was to determine the normal stretched penile length, total serum testosterone levels in term male newborns and to correlate them with anthropometric parameters. METHODS: this was a prospective cross-sectional study. One hundred and twenty-four consecutive healthy term male neonates were recruited in the first 72 hours of postnatal life. The stretched penile length (SPL) was measured with a rigid metric ruler. Weight, length and occipitofrontal circumference were also measured. Total serum testosterone level was determined using Enzyme Linked Immunoassay. Data were analysed using the Statistical Package for Social Sciences for Windows version 20. RESULTS: a total of 124 term male neonates were recruited. The postnatal age of recruited neonates was one to 70 hours with a mean of 22.8 ± 17.6 hours and the mean of estimated gestation age was 38.5 ± 1.3 weeks. The range of stretched penile length was from 2.1 to 3.9 cm with a mean of 3.2 ± 0.4 cm and SPL less than 2.2 cm was considered as micropenis. The mean total serum testosterone level was 357.4 ± 241.7 ng/dl. The SPL had a positive correlation with the birth weight, length and total serum testosterone. The total serum testosterone and birth length were predictors of stretched penile length. CONCLUSION: among the studied population the mean stretched penile length was 3.2 cm and mean total serum testosterone was 357.4 ng/dL.

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Metadata

Authors
John Kareem, A., Elutayo Elusiyan, J. B., & Kareem, A. O.
Venue
Pan African Medical Journal
Publisher
Pan African Medical Journal
Published
2020
Volume
37
Pages
61-61
ISSN
1937-8688 (ISSN-L)
DOI
10.11604/pamj.2020.37.61.21123
PMC
PMC7680247
OpenAlex
W3109652627
Cited by
9
References
2
Citations by year
2025: 1 · 2024: 2 · 2023: 2 · 2022: 1 · 2021: 3
FWCI
1.71
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Pan African Medical Journal (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Topics
  • Health Sciences › Medicine › Urology › Urological Disorders and Treatments
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Sexual Differentiation and Disorders
  • Health Sciences › Medicine › Surgery › Genital Health and Disease
Keywords
stretched penile length, reference values, micropenis, birth weight, birth length, anthropometric parameters, neonatal endocrinology
MeSH terms
Anthropometry, Birth Weight, Cross-Sectional Studies, Genital Diseases, Male, Humans, Infant, Newborn, Male, Penis, Prospective Studies, Reference Values, Testosterone

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