Neonatology Book

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Newborn Genitalia Exam

Aka: Newborn Genitalia Exam, Genitourinary Examination in Infants
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  1. Female: Common normal findings
    1. Labia minora and Clitoris prominent
    2. Vaginal Skin Tag
    3. Mucoid discharge
  2. Male: Abnormal findings
    1. Undescended Testes (more common in premature infants)
    2. Communicating Hydrocele
    3. Inguinal Hernia (complicates Communicating Hydrocele)
    4. Hypospadias (with or without Chordee)
      1. Prepuce may adhere to glans (do not retract)
    5. Small Penis
      1. Suggests low Androgen level or Growth Hormone
      2. Normal penis length: 2.8 cm to 4.2 cm
      3. Normal penis diameter: 0.9 to 1.3 cm
  3. References
    1. Fuloria (2002) Am Fam Physician 65(2):265-70

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