Does Testosterone Affect Your Sex Drive?

Yes, testosterone plays an important role in sex drive for both men and women. It is one of the key hormones behind desire and low levels can contribute to a reduced libido. Although testosterone is often thought of as a male hormone, women produce it too, in smaller amounts and it matters for their desire as well. That said, testosterone is only one factor among many, so low desire is not always due to low testosterone and normal levels do not guarantee high desire. Understanding its role helps put hormone concerns in perspective.

This guide explains how testosterone affects libido, the signs of low levels and why any treatment must be guided by a doctor. This guide is general information and not medical advice, so please speak to a doctor about any personal concern. For men's low desire specifically, see our guide on Low Sex Drive in Men.

How Testosterone Influences Desire

The hormone acts on desire in a few ways and its effects differ by level and individual. The table below sums up the key points.

So testosterone is important but not the whole story. Our guide on What Affects Your Sex Drive covers the many other influences.

Signs of Low Testosterone

In men, a marked deficiency, sometimes called low testosterone or hypogonadism, can cause reduced desire alongside symptoms such as fatigue, low mood, loss of muscle and erection difficulties. In women, low testosterone may contribute to reduced desire, though it is harder to define and diagnose. Because these symptoms overlap with many other conditions, low testosterone cannot be assumed from libido alone. A doctor can order a blood test to check levels if there is reason to, ideally alongside considering the whole picture of health and wellbeing. Our guide on Medical Conditions and Sex Drive covers related health factors.

Testosterone Treatment: A Word of Caution

Testosterone replacement therapy can help people with a genuine, diagnosed deficiency but it is not a general libido booster and must only be used under medical supervision. Taking testosterone or so-called testosterone-boosting supplements without medical guidance can be ineffective and carries real risks, including to heart health and fertility and unregulated products may be unsafe. If you suspect low testosterone, the right step is to see a doctor for proper assessment rather than self-treating. Where treatment is appropriate, a doctor will monitor it carefully. This guide is general information and not medical advice, so please speak to a doctor about any personal concern. Our guide on Are Libido Supplements Safe explains the risks of unproven products.

Testosterone and Women's Desire

Testosterone is often overlooked in women, yet it plays a genuine part in female desire. Women's bodies produce testosterone in the ovaries and adrenal glands and levels naturally decline with age and can be affected by the menopause and by having the ovaries removed. Some women with persistent, distressing low desire are found to benefit from testosterone treatment, which in the UK is sometimes prescribed by specialists for this purpose, though it is used carefully and monitored. It is not a routine or over-the-counter option and it is only one part of assessing low desire in women.

As with men, the key message for women is that testosterone is one factor among many and low desire is far more often due to a combination of hormonal, emotional and relationship factors. Any consideration of testosterone for women should be led by a doctor, ideally one experienced in this area, rather than pursued through supplements. Our guide on Low Sex Drive in Women covers the fuller picture of female desire.

Browse the complete Sex Drive and Libido Guides library for clear guidance on hormones and sex drive.

Putting Hormones in Perspective

It is worth keeping testosterone in proportion. While it genuinely influences desire, plenty of people with normal levels still experience low libido because of stress, mood, relationships or other factors and boosting testosterone will not help if it is not the cause. Equally, some people with lower levels have a perfectly satisfying sex life. This is why a good assessment looks at the whole person rather than a single number. Focusing only on testosterone risks missing the real cause, so it is best considered as one part of a broader look at your health and life. Our guide on What Causes a Low Sex Drive sets out the full range of causes.

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The Short Answer

Yes, testosterone affects sex drive in both men and women and low levels can reduce desire. It declines gradually with age and matters for women in smaller amounts too. But it is only one factor, so low libido is not always due to low testosterone. If you suspect a deficiency, see a doctor for proper testing and never take testosterone or boosters without medical supervision.