Hypospadias

Overview


Plain-Language Overview

Hypospadias is a common birth condition affecting the male urinary and reproductive system. It occurs when the opening of the urethra is not located at the tip of the penis but somewhere along the underside. This can cause difficulties with urination, such as spraying or an abnormal stream, and may affect sexual function later in life. The condition involves abnormal development of the penis during fetal growth. It is usually noticed soon after birth during a physical exam. The severity varies depending on how far the urethral opening is from its normal position. Surgical correction is often needed to restore normal function and appearance.

Clinical Definition

Hypospadias is a congenital malformation characterized by an ectopic placement of the urethral meatus on the ventral surface of the penis rather than at the glans tip. It results from incomplete fusion of the urethral folds during embryogenesis, typically between weeks 8 and 14 of gestation. The condition is often associated with a ventral penile curvature called chordee and a dorsal hooded foreskin due to incomplete ventral foreskin development. The etiology involves genetic and environmental factors affecting androgen signaling and penile morphogenesis. Clinically, it is significant because it can impair urinary stream, cause difficulties with sexual intercourse, and may be linked to other genitourinary anomalies. Diagnosis is primarily clinical, based on physical examination of the external genitalia. Early recognition is important for planning surgical repair to optimize functional and cosmetic outcomes.

Inciting Event

Locked content

Latency Period

Locked content

Diagnostic Delay

Locked content

Clinical Presentation


Signs & Symptoms

Locked content

History of Present Illness

Locked content

Past Medical History

Locked content

Family History

Locked content

Physical Exam Findings

Locked content

Diagnostic Workup


Diagnostic Criteria

Locked content

Pathophysiology


Key Mechanisms

Locked content

Organs

Locked content

Tissues

Locked content

Cells

Locked content

Chemical Mediators

Locked content

Treatments


Pharmacological Treatments

Locked content

Non-pharmacological Treatments

Locked content

Prevention


Pharmacological Prevention

Locked content

Non-pharmacological Prevention

Locked content

Outcome & Complications


Complications

Locked content

Short-term Sequelae

Locked content

Long-term Sequelae

Locked content

Differential Diagnoses


Differentials

Locked content

Medical Disclaimer: The content on this site is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. If you think you may be experiencing a medical emergency, call 911 or your local emergency number immediately. Always consult a licensed healthcare professional with questions about a medical condition.

Artificial Intelligence Use: Portions of this site’s content were generated or assisted by AI and reviewed by Erik Romano, MD; however, errors or omissions may occur.

USMLE® is a registered trademark of the Federation of State Medical Boards (FSMB) and the National Board of Medical Examiners (NBME). Doctogenic and Roscoe & Romano are not affiliated with, sponsored by, or endorsed by the USMLE, FSMB, or NBME. Neither FSMB nor NBME has reviewed or approved this content. "USMLE Step 1" and "USMLE Step 2 CK" are used only to identify the relevant examinations.