Clinically Validated Screening Tool
The ADAM questionnaire (Androgen Deficiency in Aging Males) was developed at Saint Louis University and has been used by physicians worldwide since 2000. It screens for symptoms with 88–97% sensitivity.
10 questions · 2 minutes · No signup required
Key indicator: This symptom is strongly associated with testosterone deficiency.
You answered "Yes" to of 10 questions.
Based on the ADAM scoring criteria, your symptom profile is consistent with possible testosterone deficiency. The next step is bloodwork to measure your actual testosterone levels.
Your symptom profile doesn't strongly suggest testosterone deficiency. However, if you're experiencing symptoms that concern you, bloodwork is the only definitive way to know your levels.
This screening tool is not a diagnosis. Many of these symptoms can be caused by conditions other than low testosterone, including depression, thyroid disorders, sleep apnea, and stress. Only a blood test can confirm testosterone deficiency. Always consult a licensed physician before starting any treatment.
A morning blood draw measuring total testosterone, free testosterone, and SHBG is the gold standard. Levels below 300 ng/dL on two separate morning tests typically qualify for treatment.
Best at-home testosterone test kits →If your levels are low, treatment options include testosterone replacement therapy (TRT), natural optimization strategies, or alternatives like enclomiphene for men who want to preserve fertility.
Complete beginner's guide to TRT →Whether you go through your primary care doctor or an online TRT clinic, choose a provider that requires bloodwork, offers ongoing monitoring, and has transparent pricing.
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Low testosterone affects an estimated 40% of men over 45. Levels naturally decline about 1% per year after age 30, but symptoms are treatable.
300 ng/dL
The clinical threshold below which most physicians diagnose testosterone deficiency, per the Endocrine Society and AUA guidelines.
~40%
Of men over age 45 have testosterone levels below the normal range, making low T one of the most common hormonal deficiencies in men.
88–97%
Sensitivity of the ADAM questionnaire — it correctly identifies most men who have low testosterone, though a blood test is required to confirm.
The Androgen Deficiency in Aging Males (ADAM) questionnaire was developed in 2000 by Dr. John Morley at Saint Louis University School of Medicine. It has been validated in multiple international studies and is widely used by physicians as a first-line screening tool for testosterone deficiency.
A positive ADAM result is defined as answering "Yes" to question 1 (decreased libido) or question 7 (weaker erections), OR answering "Yes" to any 3 or more of the remaining questions.
Sources: Morley JE et al. Metabolism. 2000;49(9):1239-42 · Martinez-Jabaloyas JM et al. Aging Male. 2012;15(2):113-8 · Mohamed O et al. Can J Urol. 2010;17(1):5029-34