One principle remains central in this series: the absence of symptoms never rules out prostate cancer, and the presence of urinary symptoms does not necessarily imply cancer. It is precisely this reality that makes early detection, discussed with your doctor, more reliable than waiting for a warning sign.
1. Urinary disorders: most often linked to BPH, not cancer
Difficulty starting urination, weak urinary stream, frequent need to urinate especially at night, feeling of incomplete emptying: these symptoms, very common after the age of 50, are most often linked to benign prostatic hypertrophy rather than cancer, as detailed in our previous article. They nevertheless warrant a consultation, if only to confirm their benign origin and improve comfort of life.
2. Signs that should raise more alarm
Certain less common signs are more specifically associated with prostate cancer, particularly at a more advanced stage, and warrant rapid consultation:
| Sign | What it can indicate | Frequency |
|---|---|---|
| Blood in the urine (hematuria) | May be linked to a cancer, but also to many benign causes | Uncommon, to be explored systematically |
| Blood in semen (hemospermia), isolated | Most often benign (rupture of small vessels) | Common, generally not serious if isolated |
| Persistent bone pain (back, pelvis, hips) | May suggest late-stage expansion | Rare, concerns metastatic stages |
| New and persistent erectile dysfunction | Can have multiple causes, including more rarely local invasion | Common, largely benign causes |
| Unexplained weight loss, significant fatigue | General signs possible at one stage advanced | Rare at localized stage |
A point to be aware of, often a source of disproportionate concern: an isolated episode of blood in the semen is, according to medical recommendations, not suggestive of prostate cancer on its own and should not systematically trigger extensive explorations - particularly in a young man without other risk factors.
3. Bone pain: a sign not to be overlooked in men over 50
Prostate cancer, when it progresses to a metastatic stage, has a particular predilection for bone. New, persistent and localized bone pain (lower back, pelvis, hips), particularly in a man over 50 years old without identified trauma, justifies a consultation to guide the diagnosis, including in the absence of any associated urinary disorder.
4. Why consulting early remains the best option
Less than 20% of patients present with metastases at the time of diagnosis after 10 years of the disease, which illustrates the generally slow nature of its progression. But this slowness should not lead to minimizing a persistent sign: the earlier a cancer is identified, the more numerous and less burdensome the treatment options. Early detection, discussed in our second article, remains the most reliable tool — much more than waiting for a specific symptom.
⚠️ To remember from a medical point of view
An isolated episode of blood in the semen (hemospermia) is generally not suggestive of prostate cancer and does not justify systematic exploration, unless it recurs or is associated with other symptoms.
Any presence of blood in the urine, however, justifies a consultation, because it can have multiple causes that must be identified precisely.
New and persistent bone pain after the age of 50, in the absence of trauma, is worth reporting to your doctor, including without associated urinary problems.
Tips to remember:
- ●Urinary problems (weak stream, frequent urges) are most often linked to benign enlargement, not prostate cancer — but still merit a consultation.
- ●An isolated episode of blood in the semen is generally not suggestive of prostate cancer, contrary to widespread belief.
- ●Persistent bone pain (back, pelvis, hips) after the age of 50, without trauma, is a lesser known sign but should not be neglected.
- ●Less than 20% of patients present with metastases after 10 years: the progression of this cancer is generally slow, which leaves time to act in the event of persistent signs.
- ●The absence of symptoms never excludes localized prostate cancer: early detection remains more reliable than waiting for a warning signal. The Iris Prévention health check-up can help you take stock of your recent symptoms.
