Sperm are made in the testes (testicles), specifically within tiny coiled tubes called seminiferous tubules inside the testes. This is where sperm production, known as spermatogenesis, takes place. The process involves germ cells developing into mature sperm cells over about 70 days

. After being produced in the seminiferous tubules, immature sperm move to the epididymis, a coiled tube on top of each testicle, where they mature and are stored until ejaculation

. In summary:

• Sperm production occurs in the seminiferous tubules of the testes.
• Maturing sperm are stored in the epididymis.
• Hormones like testosterone regulate sperm production.
• The entire process from initial cell to mature sperm takes about 2 to 3 months