Male Low Sex Drive at 40: Causes and What to Do

Libido naturally varies between people and across life stages. A change becomes more useful to investigate when it is persistent, distressing, or different from your usual pattern. Low desire may occur on its own or alongside erectile difficulty, reduced energy, low mood, sleep problems, or trouble concentrating.

Possible contributors include work or caregiving pressure, relationship tension, anxiety or depression, alcohol or recreational drug use, and medicines such as some antidepressants or blood-pressure treatments. Health issues including thyroid disorders, diabetes, obesity, sleep apnoea, and low testosterone can also affect sexual desire. A symptom alone cannot identify the cause.

Notice when the change began and whether it followed a new medicine, illness, sleep disruption, major stress, or relationship change. Review your medicines with a clinician rather than stopping one yourself. Regular sleep, physical activity, moderating alcohol, and addressing stress may support desire, but they do not replace an assessment when symptoms continue.

A primary-care clinician can discuss your sexual and general health, mood, sleep, medicines, and goals. Testing is guided by your history and examination; hormone treatment should not be started solely from an online symptom checklist.

Arrange a medical review if reduced desire persists, causes distress, affects a relationship, or appears with erectile changes, loss of body hair, breast enlargement, testicular changes, marked fatigue, or persistent low mood. Seek urgent help for thoughts of self-harm, sudden severe testicular pain, or other acute symptoms.

Ask which causes fit your symptoms, whether a medicine or sleep problem could be contributing, whether any examination or blood tests are appropriate, and what treatment options match your health and fertility goals.