Yes, prostatitis can cause fever and flu-like symptoms, but this typically occurs in specific types of the condition. When the prostate gland becomes acutely infected by bacteria, it triggers a systemic inflammatory response, leading to high temperatures, chills, and muscle aches. In the UK, medical professionals categorise this as a “red flag” scenario. While chronic forms of prostatitis are more common and usually involve local pelvic pain without a fever, the sudden onset of flu-like symptoms alongside urinary trouble is a hallmark sign of a serious infection that requires immediate medical attention.
What We Will Cover in This Article
- Identifying Acute Bacterial Prostatitis: The cause of systemic symptoms
- Why high fever and chills are considered medical “red flags”
- The difference between local pelvic pain and “flu-like” illness
- How the body responds to a prostatic infection
- Comparing symptoms of acute vs. chronic prostatitis
- When to seek urgent care (A&E or 999)
- Diagnostic tests used to identify an infected prostate
Acute Bacterial Prostatitis and Systemic Illness
The primary cause of fever and flu-like symptoms in men with prostate issues is Acute Bacterial Prostatitis. This occurs when bacteria, often from a urinary tract infection, migrate into the prostate and multiply rapidly. Because the prostate has a rich blood supply, the infection can easily trigger a body-wide response.
Common systemic symptoms include:
- High Fever: Often reaching 38°C or higher.
- Chills and Rigors: Shivering or feeling very cold despite a high temperature.
- Myalgia: Generalized muscle aches and joint pain, like the “body aches” felt during a bout of the flu.
- Fatigue: A sudden, overwhelming sense of tiredness or malaise.
Source: https://www.mayoclinic.org/diseases-conditions/prostatitis/symptoms-causes/syc-20355766
Why Fever is a “Red Flag” in Prostate Health
In clinical practice, a fever combined with urinary symptoms is treated with high urgency. This is because the prostate is a deep-seated organ; an infection there can lead to complications such as an abscess or, more seriously, urosepsis where the infection enters the bloodstream.
If you have a fever alongside any of the following, it is not a “wait and see” situation:
- Severe pain when peeing (stinging or burning).
- Difficulty starting your urine stream.
- A complete inability to pass urine (acute retention).
- Pain in the “saddle area” (perineum) or lower back.
Differentiation: Acute vs. Chronic Prostatitis
It is important to distinguish between the types of prostatitis, as only one typically causes a fever.
| Symptom | Acute Bacterial Prostatitis | Chronic Prostatitis (CPPS) |
| Fever / Chills | Yes (Sudden and severe) | No |
| Onset | Appears over a few hours/days | Develops slowly or recurs |
| Body Aches | Yes (Flu-like) | No |
| Pelvic Pain | Intense and constant | Dull, nagging, or waxes/wanes |
| Urinary Issues | Severe stinging or blockage | Mild frequency or urgency |
- The Clinical Rule: If you feel “generally unwell” with a fever and prostate pain, it is likely acute bacterial. If you have pelvic pain but feel otherwise fine (no fever), it is more likely the chronic inflammatory version.
Summary
While many prostate conditions cause local discomfort, only an acute bacterial infection (prostatitis) typically causes a fever or flu-like symptoms. These systemic signs are clear indicators that the body is fighting a significant infection within the gland. In the UK, this is treated as an urgent medical matter to prevent the infection from spreading. If you feel feverish, shivery, and have new pain when urinating, you must seek professional help quickly to begin the necessary course of antibiotics.
If you experience high fever, confusion, or an inability to pass urine, call 999 or go to your nearest A&E immediately.
Can BPH cause a fever?
No, benign enlargement (BPH) is a structural change and does not cause a fever unless it leads to a secondary infection in the bladder or kidneys.
Are the “flu-like” symptoms actually the flu?
If you have urinary pain or difficulty at the same time, it is highly likely that the symptoms are coming from the prostate rather than a respiratory virus.
Will paracetamol fix the fever?
Paracetamol can lower the temperature, but it will not treat the underlying bacterial infection in the prostate; you will still need antibiotics.
How is acute prostatitis diagnosed?
A doctor will usually perform a physical exam (DRE) and a urine test to check for specific bacteria and signs of infection.
Can a UTI lead to a fever?
Yes, if a urinary tract infection spreads to the prostate or kidneys, it can cause systemic symptoms like fever and chills.
Is acute prostatitis common?
It is the least common form of prostatitis but the most clinically urgent because of the risk of sepsis.
How long do the flu-like symptoms last?
Once you start the correct antibiotics, the fever and body aches usually begin to improve within 24 to 48 hours.
Authority Snapshot
This article was reviewed by Dr. Stefan Petrov, a UK-trained physician with experience in general medicine, surgery, and emergency care. Dr. Petrov has worked extensively in NHS hospital settings, including urology and emergency departments, where he diagnosed and managed acute inflammatory and infectious pelvic conditions. The content is aligned with the latest clinical standards from the NHS and the British Association of Urological Surgeons (BAUS), ensuring the information provided is accurate and safe for the public.
