5 Common Signs of Low Testosterone

eeling off but can’t quite explain why? Low energy, low motivation, and changes in your body can be easy to brush off as stress or aging. But for many men (and even some women), these symptoms can point to something deeper: low testosterone. 

Joel C. Milligan, MD, in Guntersville, Alabama, recognizes that testosterone plays a major role in energy, mood, muscle mass, libido, and overall well-being. When levels drop, the effects can show up in ways you might immediately connect to hormones. 

Here are five common signs of low testosterone, and what to watch for. 

1. Persistent fatigue and low energy 

Everyone feels tired sometimes. But if you’re constantly drained even after a full night’s sleep, it could be a hormonal issue. Low testosterone can lead to: 

• Ongoing fatigue that doesn’t improve with rest
• Reduced stamina throughout the day
• Difficulty working out or with daily tasks 
• A general feeling of sluggishness

When your energy baseline shifts, it’s worth looking beyond sleep and stress. 

2. Decreased libido

One of the most well-known signs of low testosterone is a drop in sex drive. You might notice: 

• Less interest in sex
• Fewer spontaneous thoughts or desire
• Reduced sexual satisfaction

While libido can be affected by many factors, a noticeable and persistent decline is often linked to hormonal imbalance. 

3. Loss of muscle mass and strength 

Testosterone plays a key role in building and maintaining muscle. When levels drop, physical changes can follow even if your habits haven’t changed. Common signs include: 

• Difficult building or maintaining muscle
• Feeling weaker during workouts
• Increased body fat
• Slower recovery after exercise 

These changes can feel frustrating, especially if you’re putting in effort but not seeing results. 

4. Mood changes and brain fog 

Hormones don’t just affect your body; they impact your mind too. Low testosterone can contribute to: 

• Irritability or mood swings 
• Increased feelings of anxiety or low mood 
• Difficulty concentrating
• Brain fog or forgetfulness
• Lack of motivation

If you’re feeling mentally off without a clear reason, hormones may be playing a role. 

5. Sleep issues

Testosterone and sleep are closely connected. Poor sleep can lower testosterone, and low testosterone can disrupt sleep. You may experience: 

• Trouble falling asleep
• Frequent nighttime awakenings
• Feeling unrested in the morning
• Increased daytime fatigue

This cycle can be difficult to break without addressing the underlying cause. 

It’s easy to normalize feeling “off” or assume it’s just part of getting older. But you don’t have to settle for low energy, low motivation, or feeling disconnected from yourself. 

If something feels wrong, it’s worth exploring. To learn more, call us at 256-582-5131 or request an appointment online today.