If a man has no testes, he will be unable to produce testosterone and sperm, which are essential for male fertility and sexual function. Without testosterone, male secondary sex characteristics such as increased muscle mass, deeper voice, and facial hair will not develop. Additionally, due to the lack of testosterone, a man may suffer from decreased sex drive and erectile dysfunction.
Without sperm, a man will be unable to father a child naturally. Therefore, if a man wants to have children, he may need to use assisted reproductive technologies such as in-vitro fertilization (IVF).
Men without testes may also experience physical and emotional changes due to the decrease in testosterone levels. These changes may include decreased muscle mass, fatigue, depression, and anxiety.
In some cases, a man may be born without testes, a condition known as anorchia. In other cases, men may experience testicular atrophy due to aging, injury, or disease. If a man has no testes, it is important to speak to a doctor about the available treatment options.