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Testes

The testes are 2 egg-shaped male reproductive organs located in the scrotum. They produce sperm and the male hormone, testosterone.

Sperm release pathwayWatch this video about:Sperm release pathway

Alternative Names

Testicles; Gonads - male

Images

References

Donohoue PA. Development and function of the gonads. In: Kliegman RM, St. Geme JW, Blum NJ, et al, eds. Nelson Textbook of Pediatrics. 22nd ed. Philadelphia, PA: Elsevier; 2025:chap 622.

McKenney JK. Testis and testicular adnexa. In: Goldblum JR, Lamps LW, McKenney JK, Myers JL, eds. Rosai and Ackerman's Surgical Pathology. 11th ed. Philadelphia, PA: Elsevier; 2018:chap 27.

Smith RP, Krzastek S, Harrison LS. Surgical, radiographic, and endoscopic anatomy of the male reproductive system. In: Partin AW, Dmochowski RR, Kavoussi LR, Peters CA, eds. Campbell-Walsh-Wein Urology. 13th ed. Philadelphia, PA: Elsevier; 2026:chap 66.

Review Date 10/5/2025

Updated by: Kelly L. Stratton, MD, FACS, Associate Professor, Department of Urology, University of Oklahoma Health Sciences Center, Oklahoma City, OK. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.