XX male syndrome, also known as de la Chapelle syndrome, is a rare genetic condition. This condition results from a mutation or error in a person’s DNA or genes. This condition causes a person to be male-appearing physically, while also having certain female DNA or genes. This can also cause the affected individual to have small testicles, poor facial hair growth, and other feminine characteristics. People with this condition are also sterile, or unable to have children. XX males occur in 5 out of every 100,000 individuals. Affected individuals are typically raised as males and go on to lead normal healthy lives. Although there is no cure for XX male syndrome, there are various resources to help manage the condition physically, psychologically, and emotionally. Doctors seek help from various therapists and community services to provide support and care for families affected by XX male syndrome.