Alopecia Immunodeficiency refers to a disorder of the immune system that is characterized by a complete lack of hair at birth in addition to decreased hair growth throughout one's lifetime, and problems with the body's natural defense mechanisms (immune system). Hence, individuals with this disorder may be more susceptible to infection and disease. The condition is often diagnosed during childhood. Doctors diagnose this form of immune system disorder if a complete lack of hair at birth is observed. In addition, abnormalities in the full blood count (which looks at different types of blood cells) and antibody count (which helps quantify the power of the immune system) can help doctors diagnose this disorder. Treatment is developed on a case-by-case basis and depends on the nature of the immune system abnormality. Doctors may suggest injecting antibodies, which help fight infections, and other immune system components into the individual's body to strengthen the individual's immune system. They may also consider injecting bone marrow stem cells, which can later develop into immune system components. Doctors seek help from various therapists and community services to provide support and care for families affected by these disorders.