What may be a key characteristic of congenital defects involving the urethra?

A key characteristic of congenital defects involving the urethra is the presence of an abnormal opening. Congenital defects, such as hypospadias or epispadias, typically manifest as an opening that is not located at the normally expected site on the penis in males or may lead to improper alignment or development in both genders. This defect results in urinary function and reproductive implications, making it a significant aspect of patient management and counseling. Identifying the abnormal opening can lead to timely interventions that are vital for the patient's health and well-being.

Other options lack relevance to the specific nature of urethral congenital defects. Normal anatomical structures indicate healthy development, which is contrary to the situation described. Excess skin folds could pertain to various other conditions but do not specifically characterize urethral defects. Infections can be a consequence of anatomical irregularities but are not a defining feature of congenital defects themselves. The focus on an abnormal opening highlights the significance of understanding these conditions in a clinical context.