The most common signs of low testosterone are fatigue, low sex drive, erectile difficulties, loss of muscle, increased body fat, brain fog, poor sleep, and low mood. Low testosterone (low T) is diagnosed with a blood test plus symptoms — not symptoms alone.
Common symptoms of low testosterone
- Sexual: low libido, weaker erections, fewer morning erections
- Physical: fatigue, muscle loss, more belly fat, low stamina
- Cognitive/mood: brain fog, poor focus, irritability, low motivation, depression
- Other: poor sleep, reduced body hair, hot flashes (severe cases)
What causes low testosterone?
Age (levels fall ~1%/year after 30), obesity, poor sleep, chronic stress, certain medications, and medical conditions. A physician orders labs to confirm.
How it’s diagnosed
A morning blood test measuring total and free testosterone. If levels are low and you have symptoms, TRT may be appropriate.
FAQ
What testosterone level is considered low?
Most labs flag total testosterone below ~300 ng/dL, but symptoms and free testosterone matter too.
Can low testosterone be reversed?
Often, yes — with treatment guided by bloodwork, plus sleep, exercise and weight management.
Physician-led TRT & HRT, licensed in all 50 states. New patients: $247 (reg. $497), $97 follow-ups, meds shipped. Call 1-800-259-0015 or see testosterone replacement therapy.
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