Dr. John Morley of St. Louis University School of Medicine offers this questionnaire for men to assess whether they may be testosterone deficient. If you answer yes to question 1 or 7, or at least three of the other questions, you may have low testosterone. Men should first rule out depression as a cause of these symptoms.
1) Do you have a decrease in sex drive?
2) Do you lack energy?
3) Have you experienced a decrease in strength and/or endurance?
4) Have you lost height?
5) Have you noticed a decreased "enjoyment of life?"
6) Are you sad or grumpy?
7) Are your erections less strong?
8) Has there been a deterioration in your ability to play sports?
9) Are you falling asleep after dinner?
10) Has there been a deterioration in your work performance?