A man with a urinary tract infection may have a discharge from his penis. A kidney infection due to UTI is more serious.

A male urinary tract infection with kidney infection may exhibit symptoms including:

• a burning sensation when you urinate,
• abdominal and lower back pain,
• fever,
• chills,
• nausea,
• the frequent need to urinate, and
• cloudy or bloody urine.

Some sexually transmitted diseases can cause symptoms that look like a UTI.

For example, the chlamydia organism can cause urethritis.

For this reason, it is important to see a doctor for diagnosis if you have any symptoms of a urinary tract infection. Urinary tract infection symptoms will also get worse if not treated.

Untreated UTIs can spread to the blood and cause a serious infection that can be fatal.

There are more specific signs and symptoms for each type of UTI. In addition to the symptoms listed above you may experience the following:

• Acute pyelonephritis may cause flank pain, high fever, shaking chills and nausea or vomiting.
• Cystitis may result in pressure in the lower abdomen and strong-smelling urine.
• Urethritis may lead to pus in the urine. In men, urethritis may cause penile discharge.