By what age do most undescended testes typically descend?

Most undescended testes, also known as cryptorchidism, typically descend by the age of 3 months. This is a critical developmental stage as many testicles descend within the first few months of life due to hormonal changes and growth. By 3 months of age, the likelihood of spontaneous descent decreases, but a significant number of cases resolve within this timeframe. If the testes have not descended by this age, further evaluation and potential intervention may be needed to prevent complications such as infertility or testicular cancer later in life. This timing is pivotal in guiding monitoring and management strategies in neonatal care, emphasizing the importance of regular physical examinations in early infancy.