Fatigue and testosterone in older men

Fatigue after the age of 50 sometimes leads people to suspect a lack of testosterone. However, this symptom alone is not sufficient to make a diagnosis or justify hormone treatment.

A common concern among older men

A 55-year-old man arrives at the consultation with a simple complaint: "I am tired, I recover less well, is this due to my hormones?" This question is frequent, especially as promises surrounding testosterone circulate widely online. The useful response lies in a single idea: fatigue alone is not sufficient to diagnose a testosterone deficiency, nor to justify treatment.

Rising concern in the UK

The topic has returned to the news following an editorial published in the BMJ on October 14, 2026, which warns about the likely rise of private and online testosterone offers in the United Kingdom, particularly through subscription models, while noting that the exact extent of private prescriptions is unknown.

Testosterone's role in the body

Testosterone has a major role in the male body. It is involved particularly in libido, sexual function, muscle mass, bone density, or the production of red blood cells. However, this role does not transform every decrease in energy into a hormonal problem.

Fatigue as a non-specific symptom

Fatigue is a very non-specific symptom. It can be related to sleep, stress, professional or family workload, decreased physical activity, alcohol consumption, certain medications, depression, anemia, or a thyroid disorder.