Health Library/Low Testosterone
Hormone Health

5 Signs of Low Testosterone Every Man Should Know

Low testosterone affects 1 in 4 men over 30. Here are the warning signs you shouldn't ignore.

By Dr. Carlos Feliciano, MD
December 20, 2024
5 min read

Testosterone affects your energy, mood, muscle mass, bone density, and overall quality of life. When testosterone levels decline, the effects can be significant—but many men dismiss these changes as "just getting older."

1

Persistent Fatigue That Sleep Doesn't Fix

One of the most common signs of low testosterone is chronic fatigue that persists despite adequate sleep.

Feeling exhausted by mid-afternoon
Needing caffeine just to function
Low motivation for activities you used to enjoy
Decreased physical stamina
2

Decreased Libido and Sexual Function

Testosterone is the primary driver of male sexual desire. When levels drop, many men notice a significant decrease.

Reduced interest in sexual activity
Fewer spontaneous erections
Difficulty achieving or maintaining erections
Decreased satisfaction with sexual performance
3

Unexplained Weight Gain, Especially Belly Fat

Low testosterone can lead to increased body fat, particularly around the midsection.

Increased abdominal fat despite diet and exercise
Difficulty losing weight
Loss of lean muscle definition
Feeling "soft" or out of shape
4

Mood Changes and Mental Fog

Testosterone influences brain function, mood regulation, and cognitive clarity.

Feeling irritable or easily frustrated
Depression or low mood
Difficulty focusing or remembering things
Decreased confidence and motivation
5

Loss of Muscle Mass and Strength

Testosterone is essential for building and maintaining muscle mass.

Muscles feel weaker during workouts
Visible loss of muscle definition
Longer recovery time after exercise
Decreased overall physical strength

When to Seek Help

If you're experiencing two or more of these symptoms, it's worth getting your testosterone levels checked. A simple blood test can provide answers.

Concerned About Your Testosterone Levels?

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