By Jordan Stachel, MS, RDN, CPT

Does Sex Increase Testosterone? What the Science Really Says

What Is Testosterone and Why It Matters

Testosterone is the primary male sex hormone. It regulates libido, sperm production, muscle strength, energy, mood, and erectile function. Levels rise during adolescence and gradually decline with age, often influenced by lifestyle, stress, and sleep quality. Understanding whether sex boosts testosterone is relevant for men looking to optimize performance, energy, or fertility.

Short-Term Testosterone Spikes After Sex

Orgasm and Acute Testosterone Changes

Studies measuring men’s hormone levels before and after orgasm show mixed results:

• A 2001 German study found no immediate change in testosterone after masturbation-induced orgasm, but a noticeable increase in baseline testosterone following three weeks of abstinence.
• A 2021 follow-up confirmed that total testosterone did not significantly change in the hour post-orgasm, even during arousal and sexual stimulation.

Thus, while orgasm boosts other hormones like prolactin and oxytocin, testosterone doesn’t spike acutely during sex.

How Long Do Changes Last?

Any elevated testosterone after a period of abstinence tends to normalize within days. One study noted that levels peaked around day 7 of abstinence (up to 150% of baseline), then returned to normal. Resuming sexual activity typically stabilizes testosterone to daily fluctuations.

Does Frequent Sex Raise Long-Term Testosterone?

Statistical Associations vs. Clinical Effects

Some research shows that men in frequent sexual relationships have slightly higher testosterone averages than their less sexually active counterparts. However, these findings are associational, not causal:

• Men may have higher testosterone because they are sexually active—not necessarily more active because of testosterone.
• Older men in long-term relationships show minimal testosterone increases after sex, suggesting relationship context matters.
• A 2015 Sydney study revealed that decreased sexual activity predicted drops in testosterone, implying libido drives testosterone—not vice versa.

Bottom line? Frequent sex is a marker of healthy hormone levels—not a strategy to boost them long-term.

Sexual Arousal vs. Orgasm: Which Impacts Testosterone?

Apart from orgasm, sexual arousal alone may have a modest effect:

• Some studies show that visual sexual stimulation (erotic films or images) can slightly raise testosterone and cortisol levels.
• In both men and women, anticipation and arousal may prompt a small, temporary hormone response—not necessarily tied to orgasm.

So, arousal may briefly influence testosterone, though the change is small and transient.

The Bidirectional Relationship: Sex and Testosterone

The relationship between sex and testosterone is complex and two-way:

1. Testosterone influences libido—low levels often lead to reduced sex drive, erectile issues, and fatigue.
2. Sexual activity reflects overall health—if you feel well and have a healthy relationship, you’re more likely to maintain an active sex life.
3. Motivation vs. baseline—having enough testosterone sets the stage for sex, but sex doesn’t significantly elevate it past baseline.

Think of it this way: Sex may reflect a healthy testosterone baseline, but it doesn't raise it significantly.

Other Key Factors That Affect Testosterone

Stress and Sleep

High cortisol from stress or poor sleep can lower testosterone and dampen any slight post-sex increases. Rest and recovery matter more than the sexual act.

Age Differences

Younger men tend to have a more noticeable hormonal response to sex and arousal. In older men, even if sex doesn't boost testosterone, sex drive still relates to existing baseline levels.

Relationship Status

Men in stable, long-term partnerships may not spike testosterone during sex due to reduced mate-competition responses—unlike single men or men meeting new partners.

Can Sex Replace Testosterone Therapy?

For men with clinically low testosterone, testosterone replacement therapy (TRT) may be necessary. Sex alone cannot substitute for the benefits of medical treatment. TRT—administered via gels, injections, or patches—can improve sexual function, libido, and mood. But it must be done under medical supervision due to potential side effects, including cardiovascular risks. If you’re concerned about low testosterone, consider an at-home test and consult your provider.

Bottom Line Summary

FAQs: Common Questions About Sex and Testosterone

Does having sex increase testosterone?
No—studies show no significant immediate increase after sex, though abstaining for a few days might temporarily elevate baseline testosterone.

How long does testosterone stay elevated after abstinence?
Levels can peak around day 7 of abstinence but typically return to baseline soon after resuming sexual activity.

Does frequent sex maintain high testosterone?
Men with active sex lives often have healthy testosterone—but sex itself doesn’t raise hormone levels significantly long-term.

Does orgasm raise testosterone more than arousal?
No. Research shows similar testosterone levels regardless of orgasm. Arousal or visual stimulation matters more.

Can sex replace testosterone therapy?
No. TRT delivers therapeutic levels that sex alone cannot. Consider testing and medical evaluation if symptoms persist.

How Everlywell Can Help

Curious if your testosterone level is supporting your energy, sex drive, or overall well-being? Everlywell offers a convenient at-home Testosterone Test that’s easy to use and doctor-reviewed. Know your numbers—empower your health journey with insight and clarity.