A viral and controversial comment by Nigerian media personality Daddy Freeze — claiming that men must ejaculate at least 21 times a month to reduce their risk of prostate cancer — has sparked widespread debate and confusion online.
While ejaculation frequency has been studied in relation to prostate cancer, medical experts stress that there is no scientific consensus and certainly no compulsory rule. Given how common the disease is, separating evidence-based research from oversimplified claims is essential.
According to the American Cancer Society (ACS), about one in eight men will be diagnosed with prostate cancer at some point in their lives, making it one of the most common cancers among men worldwide.
So what does scientific research actually say about ejaculation and prostate cancer risk — and is “21 times a month” truly backed by evidence?
What the Research Shows
The widely cited “21 times a month” claim originates from a 2004 study of nearly 29,000 men, followed over eight years. The study suggested that men who ejaculated 21 or more times per month had a 31% lower risk of developing prostate cancer compared with those who ejaculated four to seven times monthly.
However, subsequent research has painted a far more complex picture.
A 2017 study examining ejaculation frequency and the risk of aggressive prostate cancer found no consistent protective effect across a man’s lifetime. The researchers observed a small and uncertain reduction in risk among men in their 30s, no clear link for men in their 20s, and weak or inconsistent evidence for men in their 40s.
Similarly, a 2009 study concluded that the relationship between sexual activity and prostate cancer varies by age. It found that higher sexual activity — particularly masturbation — in men in their 20s and 30s was associated with a slightly higher risk, while in men in their 50s, more frequent sexual activity appeared to be somewhat protective.
A 2018 research review further suggested that sexual behaviour patterns may influence risk. Men with a higher number of sexual partners had a slightly increased risk, with every 10 additional partners raising risk by about 10%. Men who began sexual activity later had a lower risk, with a 4% reduction for every five-year delay.
That review also found that moderate ejaculation frequency — roughly two to four times per week, or eight to 16 times per month — was associated with a slightly lower risk of prostate cancer.
Overall, researchers concluded that men who had fewer sexual partners, started sexual activity later, and maintained moderate ejaculation frequency were less likely to develop prostate cancer.
No Magic Number
In summary, current scientific evidence does not confirm that ejaculating 21 times a month prevents prostate cancer. The relationship between sexual activity and prostate cancer risk remains unclear, age-dependent, and influenced by multiple factors. More research is still needed.
Known Risk Factors for Prostate Cancer
According to the American Cancer Society, several well-established risk factors play a far greater role than ejaculation frequency:
Age: Prostate cancer is rare before age 40, but risk rises sharply after 50. About six in 10 cases occur in men older than 65.
Race: African American men are more likely to develop prostate cancer than white men, while Hispanic and Asian American men have lower risks compared with non-Hispanic white men.
Family history: Men with a father or brother who had prostate cancer face a higher risk.
Chemical exposure: Exposure to certain chemicals, such as Agent Orange used during the Vietnam War, has been linked to increased risk.
Can Prostate Cancer Be Prevented?
The American Cancer Society says there is no guaranteed way to prevent prostate cancer, as many major risk factors — including age, race, and genetics — are beyond individual control.
Health experts recommend focusing on regular medical check-ups, awareness of family history, and discussing screening options with healthcare providers rather than relying on unproven sexual health claims circulating online.
Credit:TheCable
