Most Common Symptoms of Low Testosterone...
Low mood, fatigue, poor concentration, irritability, anxiety, depression
Loss of muscle mass, increased body fat
Reduced sexual desire (libido)
Erectile dysfunction including inability to maintain an erection (for men)
Loss of morning erection (for men)
Loss of body hair (for men)
Small or shrinking testes (for men)
Low or zero sperm count (for men)
Reduced bone density.