FORMS [A] PRIMARY [B] SECONDARY
PRIMARY CAUSES [1] SYNDROME KLINEFELTER [2] CRYPTORCHIDISM [3] INCREASING IRON IN THE BLOOD [4] TESTICULAR INJURIES [5] MUMPS [6] HERNIA SURGERY [7] TREAT CANCER WITH CHEMOTHERAPY AND RADIATION
CAUSES OF SECONDARY [1] SYNDROME KALLMAN [2] PITUITARY TUMORS [3] PITUITARY DISTURBANCES [4] PHYCHIATRIC WORKSHOP PREPARATIONS [5] AGING