Does Not Ejaculating for 7 Days Raise Testosterone? The Evidence

By HathawayMD.com Editorial Team. Independent educational content. A clinician has not reviewed it, and it is not medical advice. HathawayMD.com is an independent publication; the “MD” in the name reflects the domain’s history and does not indicate physician authorship. Sources checked October 3, 2026.

The Short Answer

No good evidence shows that a week without ejaculating raises testosterone in a way that helps you. The famous “day 7 spike” comes from one small study of 28 men, and the journal that published it retracted it in 2021. A separate study of 10 healthy men found higher testosterone after three weeks without sexual activity. Neither abstract reports that the men felt or functioned better, and neither shows that abstaining treats low testosterone.

What the “7-Day” Study Found, and Why It Is Weaker Than It Sounds

The study measured testosterone daily in 28 volunteers after ejaculation. It reported little change on days 2 to 5, then a peak on day 7 at 145.7% of baseline, which is about 46% above the starting level. It saw no regular pattern after the peak (PubMed record).

That paper was retracted on December 10, 2021. The journal said it significantly overlaps with an earlier Chinese-language paper by the same lead author (retraction notice). The earlier paper (Sheng Li Xue Bao, 2002) describes the same seven-day pattern in its abstract.

A retraction for overlap is not a finding that the numbers were invented. But it means the 28-man result is one data set published twice, not two studies confirming each other.

Timeline: What Small Studies Measured, Day by Day

Days 2 to 5: Testosterone changed little in the 28-man study (retracted paper and its 2002 original).
Day 7: That study reported a one-time peak at 145.7% of baseline.
After day 7: That study reported no regular fluctuation. No sustained climb was reported.
Day 21: In a separate study of 10 healthy men, testosterone was higher after a 3-week break from sexual activity than before it. Orgasm itself did not change testosterone (Exton et al., 2001).
Not measured in these abstracts: anything past three weeks, whether the men’s symptoms changed, or any result in men with low testosterone.

Why One Higher Reading Does Not Settle It

Testosterone moves through the day, which is why early-morning blood draws are the rule of thumb (Sexual Medicine Society of North America). Both studies were small, so a few men can swing the average.

Cleveland Clinic’s urology guidance says frequent masturbation or sex does not cause low testosterone and has no long-term effect on levels. For short-term effects it says research conflicts and more is needed (Cleveland Clinic). So there is no strong evidence that holding back raises your levels, and none that ejaculating lowers them.

A Different Question: Abstinence and Sperm

If your real question is about fertility, the research is on semen, not testosterone. The WHO suggests 2 to 7 days of abstinence before a semen analysis. In a study of 65 men, 4 days gave higher semen volume and sperm concentration, while 1 day gave better sperm motility and function (PMC study). That does not tell you anything about testosterone.

Who Should Talk to a Clinician

Consider a visit if you have ongoing symptoms that fit low testosterone. Cleveland Clinic lists these:

Lower sex drive or erection trouble.
Fatigue, low motivation, irritability, anxiety or low mood.
Loss of muscle mass or strength.

Cleveland Clinic says it is never too early to see a doctor with these concerns. It also names other contributors worth discussing: sleep apnea, type 2 diabetes, higher body weight, heavy alcohol use, kidney failure, head injury and some medicines.

Decision Steps if Symptoms Are Why You Are Asking

Write down what you notice and for how long. The American Urological Association (AUA) says low testosterone is diagnosed only when a low blood level and symptoms occur together (AUA guideline). If erection trouble is on your list, our guideline-based ED overview explains why that evaluation includes a morning testosterone test.
Ask for a total testosterone test drawn in the early morning. The AUA calls for two early-morning measurements on separate occasions, ideally at the same lab. It treats a level below 300 ng/dL as a reasonable cutoff, but says that number alone does not define deficiency. Some experts also favor a fasting draw (SMSNA).
Expect different cutoffs. Cleveland Clinic gives a typical adult range of 250 to 800 ng/dL and calls levels under about 250 to 300 low. Guidelines and labs draw the line slightly differently, so let your clinician interpret your result.
Review the other contributors with your clinician. Sleep, weight, blood sugar, alcohol and medicines can matter more than ejaculation habits.
Do not use a week of abstinence as a substitute for testing. The sources reviewed here don’t tell men to change ejaculation habits before a blood draw. If you have a specific question about preparing for the test, ask whoever orders it.

Limits of This Evidence

The key studies are decades old, tiny, and based on volunteers rather than men with low testosterone. One is retracted. I reviewed abstracts and summaries for some of them, not full papers. This article cannot tell you whether you have low testosterone or what to do about it.

Some men look to supplements when they are worried about testosterone. This site has a separate product review of a testosterone-support supplement. It carries an affiliate disclosure and serves a different purpose than this explainer, and nothing here recommends a product.