What is spinal bulbar muscular atrophy?

A neurodegeneration: Sbma is a serious problem in which a gene causes malfunction of male hormones and causes progressive damage to the nerves that control the muscles of the body. As time goes on, men with sbma may experience loss of fertility, impotence, severe weakness, trouble swallowing and breathing, numbness, all that worsen over time, typically in men and typically starting in adulthood.