Do I Have Low Testosterone? Free Screening Quiz
The ADAM (Androgen Deficiency in the Aging Male) questionnaire is a validated clinical screening tool. Answer 10 yes/no questions to see if your symptoms are consistent with low testosterone. This takes about 60 seconds.
1.Do you have a decrease in libido (sex drive)?
2.Do you have a lack of energy?
3.Do you have 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 and/or grumpy?
7.Are your erections less strong?
8.Have you noticed a recent deterioration in your ability to play sports?
9.Are you falling asleep after dinner?
10.Has there been a recent deterioration in your work performance?
Answer all 10 questions to see your result
What Is the ADAM Questionnaire?
The ADAM questionnaire was developed by Dr. John Morley at Saint Louis University as a simple screening tool for androgen deficiency. It consists of 10 questions about common symptoms of low testosterone. A positive screening is triggered by a "Yes" to question 1 (libido) or question 7 (erections), or "Yes" to any 3 or more of the remaining questions.
The questionnaire has been validated in clinical studies and is widely used as a first step before blood work. It is not a diagnosis — only a morning blood draw for total testosterone, free testosterone, and SHBG can confirm low T.
What Are Normal Testosterone Levels by Age?
| Age | Total T (ng/dL) — Low | Normal Range | Optimal |
|---|---|---|---|
| 20-29 | < 264 | 264 - 916 | 500 - 916 |
| 30-39 | < 252 | 252 - 916 | 450 - 916 |
| 40-49 | < 237 | 237 - 870 | 400 - 870 |
| 50-59 | < 215 | 215 - 794 | 350 - 794 |
| 60+ | < 196 | 196 - 740 | 300 - 740 |
These ranges are based on large population studies. "Optimal" is where most men feel their best, but individual variation is significant. Some men are symptomatic at 350 ng/dL while others feel fine at 300.
What Blood Work Should You Get?
If your ADAM screening is positive, ask your doctor for a comprehensive hormone panel. The key tests are total testosterone, free testosterone, SHBG, LH, FSH, estradiol (sensitive), CBC (for hematocrit), and a metabolic panel. Blood should be drawn in the morning before 10 AM, fasting.
For a complete breakdown of what to test and when, see the TRT blood work guide.
If Your Doctor Prescribes TRT
Starting testosterone replacement therapy involves choosing an ester (usually cypionate or enanthate), setting an injection frequency, and establishing a monitoring schedule. Most men start at 100-150mg per week and adjust based on blood work at 6-8 weeks.
For a detailed walkthrough of what to expect, see First TRT Injection: What to Expect.
Important Disclaimer
This quiz is a screening tool, not a diagnosis. Only blood work can confirm low testosterone. The ADAM questionnaire can produce false positives — some symptoms overlap with depression, thyroid disorders, sleep apnea, and other conditions. Always consult your healthcare provider before starting any treatment.
Related Resources
- Free Testosterone Calculator — calculate free T from your lab results
- TRT Blood Work Guide — what labs to get and when
- TRT Side Effects Guide — what to watch for on therapy
- TRT Dose Calculator — calculate injection volumes
- First TRT Injection: What to Expect
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For educational and research purposes only. This calculator provides estimates based on standard formulas.
Always verify calculations with your healthcare provider before use. We assume no liability for dosing errors, adverse events, or outcomes resulting from use of this tool.