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Low Libido in Men: The Physical and Hormonal Causes | Kyros

Lost interest in sex? Low libido in men often has a physical or hormonal cause. Here is what drives it and when to see a doctor.

2 min read

Reviewed by a Kyros specialist

Urology / Andrology / Endocrinology

Medically reviewed: 11 June 2026

Losing interest in sex can feel confusing and isolating — especially when no one talks about it.

Low libido — a reduced interest in sex — is common in men and often has a real physical or hormonal cause behind it. It is not simply about willpower, attraction, or age. Because desire depends on hormones, energy, mood, and health all lining up, a dip in any of them can lower it. The reassuring part: when you find the cause, libido often follows.

What lowers male libido

The usual causes, often in combination:

  • Low testosterone, which directly influences drive (see low testosterone in Indian men)
  • Stress, anxiety, and low mood or depression
  • Poor sleep and constant fatigue
  • Diabetes and metabolic problems
  • Thyroid problems
  • Certain medicines (some blood pressure and mood medicines)
  • Excess alcohol
  • Relationship strain and life pressure

Desire is sensitive — it is often the first thing to fade when the body or mind is under load.

The testosterone question

Testosterone shapes sex drive, so low testosterone can lower libido — and in Indian men, low testosterone is more common than many realise, with symptomatic hypogonadism reported in around a quarter of working-age men in one study (Goel et al., Indian Journal of Urology, 2009). But low desire has many causes, so testosterone is one thing a doctor checks, not the whole answer. Our guide on what causes low testosterone goes deeper.

When it's worth checking

See a doctor if low desire:

  • Has lasted several weeks or more
  • Is causing distress for you or your relationship
  • Comes with tiredness, low mood, or erectile difficulty

A short-term dip during a stressful phase is normal. A lasting change is a signal worth following.

What a doctor does

A doctor looks at the whole picture — hormones, sleep, mood, blood sugar, thyroid, medicines, and stress — to find what is actually behind it. That is the difference between a real answer and a guess. Quick "drive-boosting" products sold online skip the cause and can be unsafe.

Low libido is a symptom, not a verdict. Find what's behind it, and there is usually something to do about it.

Talk to a doctor

Noticed a lasting drop in interest? An NMC-registered doctor on Kyros can review your symptoms privately and guide the right tests. Take the assessment.


References

  1. Goel A, et al. Symptomatic hypogonadism in working-age Indian men. Indian Journal of Urology, 2009.

Medically reviewed by [doctor name, NMC reg. no.] on [date]. For general information only; not a substitute for your own doctor.

Frequently asked questions

What causes low libido in men?
Common causes are low testosterone, stress and depression, poor sleep, diabetes, thyroid problems, certain medicines, alcohol, and relationship factors. It is often a mix rather than one cause.
Is low libido linked to low testosterone?
It can be. Testosterone influences sex drive, so low levels can lower libido. But low desire has many other causes too, so a doctor checks the whole picture, not just hormones.
When should a man see a doctor about low sex drive?
See a doctor if low desire lasts for weeks, causes distress, or comes with tiredness, low mood, or erectile difficulty. These point to a cause worth finding and addressing.

References

  1. Goel A, et al. Symptomatic hypogonadism in working-age Indian men. Indian J Urol, 2009.

Reviewed by a Kyros Urology / Andrology / Endocrinology specialist · 11 June 2026

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