Assessment of stretched penile length of newborn baby boy in tertiary care hospital of Bangladesh

Background: Micropenis is a medical diagnosis which often incorrectly detected. A misdiagnosis may cause parental anxiety which may lead to unnecessary examinations and tests. The correct diagnosis is made by measuring stretched penile length. When the penile length smaller than 2.5 standard deviations (SD) below the mean is considered as micropenis & which varies from one ethnicity to another. It may occur as an independent abnormality by itself or as a clinical finding of many syndromes. Objective: To find out the mean of stretched penile length of newborn baby boy of Bangladesh. Methods: This cross sectional study was conducted in Multicenter of Dhaka city In & out patients Department from January 2022 to December 2022. The newly born male baby (upto age 28 days) will be considered as study population. Data was collected from patients (mother) file and physical examination findings of the newborn. Subject selection was done as per inclusion and exclusion criteria. After full explanation of the study procedure informed written consent was taken. Data was collected in a structured questionnaire and analyzed using MS Office tools and SPSS Version 23.0. Results: The mean age was 39.7±47.7 & most age distribution of the study subjects was 50% between 24-48 hours. Out of 100 newborn baby 82% were born at term. About 30% of mother suffered from different types of illness. The mean stretched penile length of all (n=100) newborn baby was 2.25±0.66 cm & there were significant differences of SPL among the different age groups (p<0.001) such as SPL was 2.36±0.65 cm of <24 hours age group (n=30), 2.06±0.47 cm of 24-48 hours age group (n=50), 2.14±0.62 cm of 48-72 hours age group (n=14), 3.60±0.62 cm of >72 hours age group (n=6). This study also shows significantly higher mean SPL (2.33±0.67 cm) at term compared with preterm (1.90±0.52 cm) (p<0.013). Conclusion: The mean stretched penile length of all (n=100) newborn baby boy was 2.25±0.66 cm & there were significant differences of SPL among the different age groups.