File:Hypospadia classifications.jpg

Classification of Hypospadias

Hypospadia is classified by the location of the opening (meatus).

A Anterior - on inferior surface of glans penis.

B Coronal - in balanopenile furrow.

C Distal - on distal third of shaft.

D Penoscrotal - at base of shaft in front of scrotum.

E Scrotal - on scrotum or between the genital swellings.

F Perineal - behind scrotum or genital swellings.

Hypospadias most common penis abnormality (1 in 300) from a failure of male urogenital folds to fuse in various regions and resulting in a proximally displaced urethral meatus. The cause is unknown, but suggested to involve many factors either indivdually or in combination including: familial inheritance, low birth weight, assisted reproductive technology, advanced maternal age, paternal subfertility and endocrine-disrupting chemicals. Infants with hypospadias should not undergo circumcision.

Hypospadias Classification

Classification	ICD-11	Meatus Opening	Image
Anterior	glandular	urinary meatus that opens at the site of the frenulum	A
Coronal	coronal	urinary meatus opens in the ventral portion of the coronal sulcus	B
Distal	penile	urinary meatus that opens along the shaft of the penis	C
Penoscrotal	penoscrotal	urinary meatus opens where the shaft of the penis meets the scrotum	D
Scrotal	scrotal	urinary meatus that opens on the scrotum	E
Perineal	perineal	urinary meatus that opens in the perineum	F
Table reference[1] Links: hypospadias | 'ICD-11 Hypospadias

Surgical Repair

Depending on the class of hypospadias there are a number of different surgical repair techniques including: orthoplasty or penile straightening, urethroplasty, meatoplasty and glanuloplasty, scrotoplasty and skin coverage.

Image Source: Baskin etal, 2001^[1]

Links: Hypospadia | Genital System - Abnormalities

References

Cite this page: Hill, M.A. (2024, April 18) Embryology Hypospadia classifications.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Hypospadia_classifications.jpg

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© Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G

Copyright: Reproduced with permission from Environmental Health Perspectives (EHP) is a publication of the U.S. Government. Publication of EHP lies in the public domain and is therefore without copyright.