Reduced sex drive

Category: Men's Health · All men's health symptoms

What it can feel like

Reduced sex drive in men means a persistent drop in sexual interest compared with your own normal. Desire is a whole-system output — hormones, mood, relationship, sleep, alcohol, medicines and general health all feed it — so the symptom is worked through systematically rather than attributed to age alone.

Possible causes

A symptom can have many causes, and most are not serious. The lists below group conditions this symptom can be associated with — common causes first. They are possibilities to discuss with a clinician, not a diagnosis.

Common causes

Reduced sex drive can be associated with low testosterone, depression and stress, relationship difficulties, poor sleep and sleep apnoea, alcohol, and medicines including antidepressants and some blood-pressure drugs.

Other possible causes

Reduced sex drive can also be associated with thyroid disease, raised prolactin (sometimes from a small pituitary growth), chronic illness including kidney and liver disease, and the hormonal effects of obesity and heavy opioid use.

Red flags — when to seek help promptly

Reduced sex drive with milky nipple discharge, headaches or visual field changes
Reduced sex drive with erectile problems, shrunken testicles or loss of body hair (suggests testosterone deficiency)
Reduced sex drive with low mood, anhedonia or thoughts of self-harm
Reduced sex drive with unexplained weight loss or new severe fatigue

What a clinician may do

A clinician will explore mood, relationship, sleep, alcohol and medicines, and arrange blood tests — morning testosterone (repeated if low), prolactin, thyroid and glucose — targeted by the story. Treating the driver (sleep apnoea, depression, a culprit medicine, testosterone deficiency where confirmed) is the therapy.

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Frequently asked questions

Why must testosterone be measured in the morning and twice?

Testosterone peaks in the early morning and varies day to day — a single afternoon value misleads in both directions. Two low fasting morning readings, together with symptoms, are the threshold for diagnosing deficiency and considering treatment.

Can treating sleep apnoea restore sex drive?

Often, yes — fragmented sleep suppresses testosterone production and mood together, and effective apnoea treatment improves both energy and libido in many men. Snoring plus low drive plus morning headaches is a combination worth raising explicitly.

Related symptoms — Men's Health

Blood in semen Breast swelling in men Discharge from the penis Early ejaculation Erectile problems Groin lump

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Please note: This page is educational information about a symptom. A symptom alone cannot diagnose any condition, and the causes listed here are possibilities, not a diagnosis. If you are worried about a symptom — especially one that is new, severe, getting worse or not going away — please see your own clinician, who can examine you and arrange tests. In an emergency, call your local emergency number.