Testicular failure, also known as primary hypogonadism, is an uncommon condition that is characterized by the inability of the testicles to produce sperm and the male hormone testosterone. The are many factors that have been postulated as causes of the condition, which give rise to a wide array of signs and symptoms. These factors can sometimes make diagnosis as well as treatment of testicular failure a challenging problem.
Scientists recently succeeded in creating Leydig cells from human induced pluripotent stem (iPS) cells.