Cryptorchidism Evaluation and Management

Cryptorchidism, or undescended testis, ranks among the most frequent congenital urogenital anomalies in male infants. The condition arises from disrupted testicular descent during fetal development, a process normally governed by hormonal signals—particularly insulin-like peptide 3 and androgens—and mechanical guidance via the gubernaculum. Clinically, undescended testes may be palpable in the inguinal canal or non-palpable if intra-abdominal or atrophic. Early assessment combines thorough physical examination with adjunctive ultrasonography when testes cannot be located. Hormonal profiling in selected cases can elucidate endocrine causes and guide management. Spontaneous descent may occur within the first six months, coinciding with postnatal “mini-puberty,” but persistent cryptorchidism beyond this period carries risks of impaired spermatogenesis, subfertility and malignant transformation.

Current guidelines recommend referral for orchidopexy—surgical relocation of the testis into the scrotum—ideally between six and twelve months of age to optimise germ cell preservation and minimise long-term complications. Hormonal therapy with human chorionic gonadotropin or gonadotropin-releasing hormone has shown limited success and is not routinely endorsed. Follow-up into adolescence emphasises testicular volume monitoring and surveillance for testicular germ cell tumours. Multidisciplinary care, involving paediatric surgeons, endocrinologists and radiologists, ensures timely intervention and addresses psychosocial aspects of the condition.

Research from Nature Portfolio

A comprehensive single-centre retrospective study examined children with vanishing testes syndrome managed surgically over an eleven-year period. Patients were stratified into testicular excision or preservation groups based on intraoperative findings. Pathological analysis of excised remnants revealed a predominance of fibrosis, vas deferens and epididymal involvement, with a minority harbouring seminiferous tubules or germ cells. Retained remnants carried a higher incidence of scrotal incision infections, whereas excision eliminated concerns about unpredictable malignant potential. On the basis of these data, excision of atrophic testicular tissue is recommended to reduce postoperative complications and mitigate long-term cancer risk.

Cryptorchidism Evaluation and Management publication trend

The graph below shows the total number of articles in cryptorchidism evaluation and management across all publications each year (not limited to Nature Index journals).

Technical terms

Cryptorchidism: Failure of one or both testes to descend into the scrotum by birth or early infancy.

Orchidopexy: Surgical procedure to mobilise and fix an undescended testis within the scrotum.

Vanishing testes syndrome: Condition in which testicular tissue regresses in utero or early life, leaving fibrotic remnants.

Gubernaculum: Ligamentous structure guiding testicular descent from the abdomen to the scrotum.

Insulin-like peptide 3 (INSL3): Hormone secreted by fetal Leydig cells that promotes gubernacular development during the transabdominal phase of descent.

Mini-puberty: Transient activation of the hypothalamic-pituitary-gonadal axis in early infancy essential for testicular maturation.

References

1. The epidemiology of cryptorchidism and potential risk factors, including endocrine disrupting chemicals. Frontiers in Endocrinology (2024).
2. Therian origin of INSL3/RXFP2-driven testicular descent in mammals. Frontiers in Cell and Developmental Biology (2024).
3. Management of pediatric vanishing testes syndrome based on pathological diagnosis: a single-center retrospective study. Scientific Reports (2024).
4. Systematic review and meta-analysis comparing outcomes following orchidopexy for cryptorchidism before or after 1 year of age. BJS Open (2018).
5. Genetics of cryptorchidism and testicular regression. Best Practice & Research Clinical Endocrinology & Metabolism (2022).