Normal Testosterone Levels
What you may consider normal testosterone levels for one person, may be differant for another. As you age, your testosterone requirements may change over time. When you were younger (teens) your testosterone was at it's highest, and as you age it has gradually declined. Your testosterone levels influence your behaviour just as much as your health.
When you were a sexually fueled, wide eyed, ambitious 20 year old it was mostly because of your high testosterone levels.
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| Vermeulen, A. (1996). Declining androgens with age: an overview. In Vermeulen, A. & Oddens, & B. J. (Eds.), Androgens and the Aging Male (pp. 3-14). New York: Parthenon Publishing. |
|---|
| Measurements in European Units (nmol/L) |
| Age | Number of Subjects |
Total Testosterone |
Standard Deviation |
Free Testosterone |
Standard Deviation |
SHBG | Standard Deviation |
|---|---|---|---|---|---|---|---|
25-34 |
45 |
21.38 |
5.90 |
0.428 |
0.098 |
35.5 |
8.8 |
35-44 |
22 |
23.14 |
7.36 |
0.356 |
0.043 |
40.1 |
7.9 |
45-54 |
23 |
21.02 |
7.37 |
0.314 |
0.075 |
44.6 |
8.2 |
55-64 |
43 |
19.49 |
6.75 |
0.288 |
0.073 |
45.5 |
8.8 |
65-74 |
47 |
18.15 |
6.83 |
0.239 |
0.078 |
48.7 |
14.2 |
75-84 |
48 |
16.32 |
5.85 |
0.207 |
0.081 |
51.0 |
22.7 |
85-100 |
21 |
13.05 |
4.63 |
0.186 |
0.080 |
65.9 |
22.8 |
| Measurements Converted to (ng/dl) |
|---|
| Age | Number of Subjects |
Total Testosterone |
Standard Deviation |
Free Testosterone |
Standard Deviation |
SHBG (nmol/L) | Standard Deviation |
|---|---|---|---|---|---|---|---|
25-34 |
45 |
617 |
170 |
12.3 |
2.8 |
35.5 |
8.8 |
35-44 |
22 |
668 |
212 |
10.3 |
1.2 |
40.1 |
7.9 |
45-54 |
23 |
606 |
213 |
9.1 |
2.2 |
44.6 |
8.2 |
55-64 |
43 |
562 |
195 |
8.3 |
2.1 |
45.5 |
8.8 |
65-74 |
47 |
524 |
197 |
6.9 |
2.3 |
48.7 |
14.2 |
75-84 |
48 |
471 |
169 |
6.0 |
2.3 |
51.0 |
22.7 |
85-100 |
21 |
376 |
134 |
5.4 |
2.3 |
65.9 |
22.8 |
Normal Testosterone Levels in Healthy Non-Diabetic Men
| Simon, D., Nahoul, K., & Charles M.A. (1996). Sex hormones, aging, ethnicity and insulin sensivity in men: an overview of the TELECOM Study. In Vermeulen, A. & Oddens, & B. J. (Eds.), Androgens and the Aging Male (pp. 85-102). New York: Parthenon Publishing. |
|---|
| Measurements in European Units (nmol/L) |
| Age | Number of Subjects |
Mean Total Testosterone |
Standard Deviation |
Median Total Testosterone |
5th Percentile |
10th Percentile |
95th Percentile |
|---|---|---|---|---|---|---|---|
25 |
125 |
23.97 |
5.48 |
24.15 |
14.15 |
16.22 |
33.12 |
<25-29 |
354 |
23.18 |
7.14 |
22.08 |
13.46 |
15.18 |
34.84 |
30-34 |
330 |
21.53 |
6.72 |
20.70 |
12.07 |
13.46 |
33.81 |
35-39 |
212 |
20.70 |
6.55 |
19.66 |
11.39 |
13.46 |
32.77 |
40-44 |
148 |
20.7 |
6.87 |
20.70 |
11.04 |
13.11 |
32.43 |
45-49 |
154 |
18.91 |
5.66 |
18.28 |
11.39 |
12.42 |
29.32 |
50-54 |
164 |
18.87 |
6.49 |
17.94 |
10.01 |
12.07 |
32.43 |
55-59 |
155 |
19.14 |
6.04 |
18.97 |
11.04 |
11.73 |
30.01 |
| Measurements Converted to (ng/dl) |
|---|
| Age | Number of Subjects |
Mean Total Testosterone |
Standard Deviation |
Median Total Testosterone |
5th Percentile |
10th Percentile |
95th Percentile |
|---|---|---|---|---|---|---|---|
<25 |
125 |
692 |
158 |
697 |
408 |
468 |
956 |
25-29 |
354 |
669 |
206 |
637 |
388 |
438 |
1005 |
30-34 |
330 |
621 |
194 |
597 |
348 |
388 |
975 |
35-39 |
212 |
597 |
189 |
567 |
329 |
388 |
945 |
40-44 |
148 |
597 |
198 |
597 |
319 |
378 |
936 |
45-49 |
154 |
546 |
163 |
527 |
329 |
358 |
846 |
50-54 |
164 |
544 |
187 |
518 |
289 |
348 |
936 |
55-59 |
155 |
552 |
174 |
547 |
319 |
338 |
866 |
Depending on the lab ranges your doctor uses, the typical male testosterone level is between 250ng/dl to 850 ng/dl.
As you can imagine these ranges are not set for a virile, high quality of life. They are a cross section of men aged 20 to 100. Many of them are sick and not healthy.
So when you get you get your blood work back and your doctor says your testosterone levels are "normal" at 275 ng/dl, you can tell him where to go. Politely of course. :)
Your doctor may say you are not a candidate for testosterone replacement due to these "normal levels".
If you kindly talk about the reference ranges and remind him you have the testosterone levels of a sick 90 year old, maybe he/she will come around.
Even then... you may be better off talking about your symptoms of low testosterone like fatigue, loss of sex drive, foggy headedness, etc... Tell him your job is suffering and you may get fired, or your wife/girlfriend is about to leave you due to libido or money problems.
Doctors will usually come around once you explain the seriousness of your case. And if they don't come around? Shop around. You'll eventually find a doctor that suits your needs. It's not worth it in the short or long term to ignore your low testosterone levels.
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