Cryptorchidism in the subfertile male

Area of Science:

• Pediatric Urology
• Reproductive Endocrinology
• Developmental Biology

Background:

• Cryptorchidism, or undescended testes, is a common congenital condition in infants.
• The natural descent of testes typically concludes within the first year of life.
• Subfertility is a recognized concern in patients with unilateral cryptorchidism.

Purpose of the Study:

• To review current data on unilaterally cryptorchid patients.
• To assess the impact of cryptorchidism on seminal quality and testicular health.
• To provide recommendations for optimal management and surgical timing.

Main Methods:

• Review of existing literature and presentation of new clinical data.
• Analysis of seminal quality in unilaterally cryptorchid patients.
• Evaluation of testicular size, histology, and hormonal levels.
• Assessment of response to human chorionic gonadotropin (hCG) stimulation.

Main Results:

• Truly undescended testes fail to descend spontaneously after one year of age.
• Seminal quality is impaired in most unilaterally cryptorchid patients, regardless of surgery timing.
• Maldescended testes may have inherent abnormalities compounded by dystopic position.
• Orchiopexy before age five is advised to reduce temperature-related histologic changes.
• Cryptorchid testes are typically smaller and exhibit significant pathology, irrespective of surgical intervention.
• Elevated follicle-stimulating hormone (FSH) levels may occur but do not always indicate severe testicular damage; androgen production is usually unaffected.

Conclusions:

• Spontaneous testicular descent ceases after one year of age.
• Unilateral cryptorchidism is associated with impaired seminal quality and smaller testicular size.
• Early surgical intervention (orchiopexy) before age five is recommended.
• hCG stimulation can help differentiate true cryptorchidism from retractile testes, guiding surgical necessity.