How Long Does a Male UTI Last and When Should You See a Doctor?

A urinary tract infection (UTI) occurs when bacteria invade and multiply within the urinary system, which includes the kidneys, ureters, bladder, and urethra. While often associated more with women, UTIs can affect men, though less frequently. When a UTI does develop in men, it is often considered more serious than in women due to potential underlying causes and a higher risk of complications. Therefore, male UTIs warrant careful attention and prompt medical evaluation.

What is a Male UTI and Its Symptoms

Male urinary tract infections typically result from bacteria, most commonly E. coli, entering the urinary tract through the urethra. While women’s shorter urethras make UTIs more common for them, men’s longer urethras provide a natural protective barrier. Therefore, male UTIs often signal an underlying issue. Common contributing factors include an enlarged prostate (benign prostatic hyperplasia), which can obstruct urine flow, kidney stones, urinary catheters, recent urinary tract procedures, diabetes, a weakened immune system, or, in younger men, sexually transmitted infections.

Symptoms vary based on the infection’s location. Common indicators include a frequent and urgent need to urinate, often with small amounts passed, and pain or a burning sensation during urination. Other signs are cloudy or strong-smelling urine, blood in the urine, and lower abdominal or pelvic discomfort. If the infection spreads to the kidneys, symptoms can escalate to fever, chills, nausea, vomiting, and back or side pain.

How Long Male UTIs Typically Last

The duration of a male UTI varies based on infection severity, bacteria type, individual health, and treatment initiation. Most male UTIs are considered complicated due to underlying anatomical issues, unlike simpler infections in women. This complexity often requires a more prolonged course of antibiotics.

While rare uncomplicated cases may resolve in a few days with antibiotics, typical treatment for male UTIs ranges from 7 to 14 days. Studies suggest that for afebrile men with suspected UTIs, a 7-day course of certain antibiotics, like ciprofloxacin or trimethoprim/sulfamethoxazole, can be as effective as a 14-day course. This shorter duration can also reduce the risk of antibiotic resistance and side effects.

If the infection involves the prostate (prostatitis), a longer treatment of at least 4 weeks is often needed to prevent chronic bacterial prostatitis. Kidney infections (pyelonephritis) also require longer treatment, typically 10 to 14 days of antibiotics, sometimes starting with intravenous medication. Untreated or inadequately treated male UTIs can persist, leading to chronic infections or severe complications like kidney damage or bloodstream infections.

When to See a Doctor for a Male UTI

Given the potential complexity of male UTIs and their indication of underlying health issues, men should seek prompt medical attention if they suspect an infection. Symptoms like frequent urination, painful urination, or cloudy urine warrant a doctor’s visit for diagnosis and treatment. Early intervention prevents the infection from spreading and leading to complications.

Immediate medical attention is needed for specific warning signs. These include fever (above 100.4°F or 38°C) and chills, indicating the infection may have spread to the kidneys or prostate. Severe back or side pain, nausea, or vomiting also signal a serious upper urinary tract infection. Blood in the urine, or symptoms that do not improve or worsen after a few days, also require urgent evaluation. Since male UTIs are rarely uncomplicated, professional diagnosis and tailored treatment are crucial to avoid issues like chronic prostatitis, kidney damage, or bloodstream infections.

Treating a Male UTI

Standard medical treatment for male UTIs involves antibiotic therapy to eliminate the bacterial infection. A doctor determines the specific type and duration of antibiotics based on urine culture results and infection severity. Common antibiotics include trimethoprim-sulfamethoxazole, fluoroquinolones, or nitrofurantoin. Antibiotic resistance can vary by region.

For lower UTIs, a 7 to 10-day antibiotic course is common. Prostate infections often require a longer course, up to 4 weeks, to prevent recurrence. Severe infections, like those affecting the kidneys, may require initial intravenous antibiotics followed by oral medication. Supportive care, such as drinking plenty of fluids and using pain relievers, can help manage symptoms. Patients must complete the entire antibiotic course as prescribed, even if symptoms improve, to effectively clear the infection and minimize resistance or recurrence.

Preventing Future Male UTIs

Certain practices can reduce the risk of future male UTIs. Maintaining good hydration by drinking plenty of fluids, especially water, helps flush bacteria from the urinary tract. Urinating frequently and completely emptying the bladder also prevents bacterial growth, as stagnant urine creates a conducive environment.

Good hygiene is important. Regularly cleaning the genital area with warm water and mild soap minimizes bacterial colonization, and urinating immediately after sexual activity helps flush out bacteria. Addressing underlying conditions that predispose men to UTIs is a key preventive strategy, including managing an enlarged prostate, treating kidney stones, or other urinary tract obstructions. Regular medical check-ups and open communication with a healthcare provider about persistent urinary symptoms ensure these issues are identified and managed proactively.