Ten signs and symptoms of low testosterone levels in adults

1. Sexual symptoms – Most prominent symptom, Decreased erections, loss of erectile function (erectile dysfunction), decreased semen volume, decreased frequency of ejaculations
2. Hair loss
3. Cognitive symptoms – Low mood, low sexual desire, memory impairement, sleep disturbances, concentration difficulties, decreased motivation
4. Reduced muscle mass, increase in body fat
5. Decreased physical strength/activity, decreased energy
6. Increased risk of heart diseases
7. Hot flushes
8. Gynecomastia/increased breast tissue
9. Persistent fatigue
10. Loss of bone tissue, increased risk of osteoporosis

Read more about testosterone and testosterone deficiency syndrome at Testosterone and Testosterone deficiency syndrome