Topic 7. Male Urogenital & Reproductive Disorders: Hypospadias, Infertility & Sexually Transmitted Infections

Topic Introduction

This topic brings together three common areas of male urogenital and reproductive practice. Hypospadias is a congenital abnormality in which the urethral opening lies on the ventral surface of the penis rather than at its normal tip. Male infertility requires a systematic search for problems affecting sperm production, transport or sexual function. Sexually transmitted infections (STIs) may present with urethral discharge, ulcers, genital lesions or other symptoms and require careful classification and treatment. Although these problems occur at different ages, the same clinical principle applies: recognize the problem, assess it systematically, select investigations that answer a clinical question, and manage the underlying cause while protecting future function and reproductive health.

A. Hypospadias: Recognition, Types & Clinical Significance

Hypospadias is a congenital abnormality of the male urethra in which the external urethral meatus opens on the ventral aspect of the penis rather than at the tip of the glans. It results from incomplete development and fusion of the ventral urethral structures during fetal development.

The position of the meatus is clinically important because it reflects the severity of the abnormality and influences urinary function and reconstructive planning.

Types of hypospadias

Hypospadias is commonly classified according to the position of the urethral opening:

• Distal/anterior: the opening is near the glans or distal penile shaft. This is the commonest and usually least severe form.
• Mid-penile: the opening lies along the penile shaft.
• Proximal/posterior: the opening lies near the penoscrotal junction, scrotum or perineum and represents a more severe abnormality.

Associated anatomical features

The abnormal meatal position may occur with ventral curvature of the penis (chordee) and a characteristic incomplete ventral prepuce, producing a dorsal hood of foreskin. More proximal disease tends to have greater functional significance.

Clinical logic:

B. Hypospadias: Complications & Management in Children

The clinical importance of hypospadias is not simply the abnormal position of the meatus. The abnormality may interfere with the direction of the urinary stream, penile straightness and later sexual or reproductive function. The impact is greatest in more proximal forms and when significant chordee is present.

Important complications and functional problems

• Abnormal or spraying urinary stream.
• Difficulty directing urine while standing, particularly in proximal disease.
• Ventral penile curvature due to chordee.
• Later difficulty with satisfactory sexual intercourse when curvature or proximal displacement is marked.
• Potential fertility difficulty in severe proximal disease because semen may not be deposited normally.
• Psychological and cosmetic concerns as the child grows.

Management principle

Children with hypospadias should be assessed by an appropriate pediatric surgical or urological team. The aim of treatment is to obtain a functionally straight penis and bring the urethral opening toward the tip so that urination and later sexual function are as normal as possible.

Surgical correction generally involves correction of significant chordee and reconstruction of the urethra. Detailed operative techniques belong to specialist surgical training rather than undergraduate learning.

Timing of surgery: Hypospadias repair is usually performed between 6 and 18 months of age. Mild distal hypospadias without functional impairment may be managed individually after specialist assessment, whereas proximal disease or significant chordee generally requires surgical correction.

After repair, recognized complications include urethrocutaneous fistula, meatal or urethral narrowing and recurrent curvature. Follow-up therefore considers both urinary function and the anatomical result.

C. Male Infertility: Causes & Clinical Assessment

Male infertility is evaluated by asking a simple clinical question: is sperm production impaired, is sperm transport obstructed, or is sperm delivery/function impaired? This framework prevents the investigation from becoming a random collection of tests.

Causes can therefore be understood in three broad groups:

Focused history

Assessment should involve the couple, but the male history specifically searches for factors that may impair sperm production, transport or sexual function.

• Duration of infertility and whether conception has ever occurred previously.
• Sexual history, including erectile or ejaculatory difficulty and frequency/timing of intercourse.
• Past testicular disease, trauma, surgery or infection.
• History of undescended testes.
• Previous genital or sexually transmitted infection.
• Systemic illness and relevant medication or drug exposure.
• Occupational or environmental exposure that may impair testicular function.
• Features suggesting endocrine disease.

Focused examination

Examination looks for evidence that explains the reproductive problem rather than functioning as a complete OSCE checklist. Important findings include secondary sexual characteristics, penile abnormalities, testicular size and consistency, epididymal or vasal abnormalities and the presence of a varicocele.

D. Male Infertility: Diagnostic Pathway & Management

Semen analysis is the central initial investigation in male infertility because it directly evaluates the ejaculate and provides information about sperm concentration, motility and morphology, as well as semen volume. An abnormal result should be interpreted in clinical context and is generally confirmed because semen parameters vary between samples.

How to interpret the diagnostic pathway

The key principle is that additional investigations should answer a question raised by the history, examination or semen analysis. They should not be ordered indiscriminately.

Management options

Treatment depends on the cause. The goal may be to correct a reversible factor, restore sperm delivery or enable conception when natural conception remains difficult.

• Address reversible factors: manage relevant systemic or endocrine disease and reduce harmful exposures where identified.
• Treat infection when a clinically relevant reproductive tract infection is present.
• Correct selected anatomical causes when appropriate, such as surgically correctable obstruction or other clinically significant abnormalities.
• Hormonal treatment is useful when infertility results from a specific treatable endocrine deficiency; it is not a universal treatment for male infertility.
• Assisted reproductive techniques may be considered when correction of the underlying cause is not possible or is insufficient.

  Specific treatment options: Varicocelectomy may improve fertility in selected men with a palpable varicocele and abnormal semen parameters. Hypogonadotropic hypogonadism may be treated with gonadotropin therapy under specialist supervision. Assisted reproductive techniques include intrauterine insemination (IUI), IVF and intracytoplasmic sperm injection (ICSI). Exogenous testosterone should be avoided in men actively seeking fertility because it suppresses sperm production.

E. Sexually Transmitted Infections: Clinical Classification & Treatment Principles

Sexually transmitted infections are best approached clinically by recognizing the syndrome or lesion pattern and then considering its likely infectious cause. This is more useful at the bedside than memorizing a long list of organisms without linking them to presentation.

Practical clinical classification

Etiologically, STIs include bacterial infections such as gonorrhea, chlamydial infection and syphilis, and viral infections such as genital herpes and human papillomavirus infection. The clinically important point is to connect the likely organism with the syndrome and select appropriate treatment or further testing.

Treatment principles

Treatment is directed at the identified or strongly suspected infection. Common bacterial STIs require appropriate antimicrobial therapy, whereas viral infections are managed according to their specific disease process; for example, antiviral therapy can reduce the severity and duration of genital herpes episodes but does not eradicate latent herpes infection.

Management should also consider the wider sexual-health context. Patients should receive clear advice about transmission, adherence to treatment, prevention of further transmission and the need for assessment or treatment of sexual partners where appropriate.

First-line treatment of common STIs (adults):

• Gonorrhea: Ceftriaxone 500 mg IM once (for patients under 150 kg); add doxycycline if chlamydia has not been excluded.

• Chlamydia: Doxycycline 100 mg orally twice daily for 7 days.

• Primary syphilis: Benzathine penicillin G 2.4 million units IM once.

• Genital herpes (first episode): Acyclovir 400 mg orally three times daily for 7–10 days.

• Genital warts: Topical imiquimod or cryotherapy, according to lesion characteristics.

F. New-Onset Genital Lesion: Clinical & Management Approach

A new genital lesion should be approached systematically rather than diagnosed from appearance alone. The first task is to determine whether the lesion is an ulcer, vesicle, papule, wart or another lesion, and then combine morphology with pain, duration, associated symptoms and sexual history.

Focused clinical assessment

• Onset and progression: sudden or gradual, first episode or recurrent.
• Pain: painful versus painless lesions provide an important diagnostic clue.
• Associated symptoms: urethral discharge, dysuria, fever, lymph-node enlargement or other genital symptoms.
• Sexual history: recent sexual exposure, new partners, barrier protection and previous STI history, asked confidentially and without judgment.
• Lesion morphology: ulceration, vesicles, warty surface, number and distribution.
• Regional lymph nodes: inguinal lymphadenopathy may support particular infectious diagnoses.

High-yield lesion patterns

Investigations and interpretation

Investigations should be selected according to the suspected lesion. Appropriate microbiological or serological testing may confirm the cause, while patients with one suspected STI should be assessed for the possibility of other sexually transmitted infections according to clinical risk.

Management approach

Management combines treatment of the likely or confirmed infection with prevention of onward transmission. Explain the diagnosis sensitively, provide appropriate infection-specific treatment, reinforce adherence, discuss safer sexual practices and ensure appropriate partner assessment or treatment. Persistent, atypical or uncertain genital lesions require reassessment rather than repeated empirical treatment without clarification of the diagnosis.

Initial clinical action: Obtain syphilis serology and HSV testing from an active ulcer when indicated; offer HIV testing and assessment for other STIs. If early syphilis or first-episode genital herpes is strongly suspected, initiate appropriate treatment without unnecessarily delaying for laboratory confirmation. Advise avoidance of sexual contact until appropriate treatment and clinical resolution, with partner assessment as indicated.

Integrated Mechanism Flow

Important Comparison — Common Genital Lesion Patterns

AIM High-Yield Review

• ⭐ Hypospadias = urethral meatus on the ventral surface of the penis; classify it according to the position of the meatus.
• More proximal hypospadias generally means a more severe anatomical and functional abnormality and is more likely to be associated with chordee.
• ⭐ Do not circumcise before specialist assessment in a child with hypospadias because preputial tissue may be required for reconstruction.
• Hypospadias repair aims for a straight penis, a functionally positioned urethral opening and satisfactory urinary and later sexual function.
• Male infertility can be organized into pre-testicular, testicular and post-testicular causes.
• ⭐ Semen analysis is the central initial laboratory investigation in the male partner; further testing is directed by history, examination and the semen pattern.
• Hormonal testing helps determine whether impaired sperm production reflects primary testicular dysfunction or an endocrine disturbance.
• Male infertility treatment is cause-directed; hormonal therapy is appropriate only for specific endocrine causes rather than all male infertility.
• Urethral discharge with dysuria should suggest an STI-associated urethritis such as gonorrheal or chlamydial infection.
• ⭐ Painless genital ulcer → think primary syphilis; painful grouped vesicles/ulcers → think genital herpes.
• Genital warts are characteristically papillary/verrucous lesions associated with HPV infection.
• A new genital lesion requires morphology + pain pattern + sexual history + associated findings, followed by targeted investigation rather than diagnosis from appearance alone.
• STI management includes appropriate infection-specific treatment plus prevention of onward transmission and appropriate partner assessment/treatment.
• Persistent, atypical or unexplained genital lesions require reassessment and diagnostic clarification rather than repeated empirical treatment.