You can even buy at-home tests to check if you have one, but how useful are they really?
UTIs can affect your bladder, urethra and kidneys, and if left untreated, can develop into a kidney infection.
According to Jean Hailes for Women's Health, common symptoms of a UTI include a burning sensation when you pee, lower belly and back pain, and the frequent feeling of needing to pee. They can even include confusion, nausea, vomiting, and a fever.
What are the benefits of testing for a UTI at home?
Pav Nanayakkara is a minimally invasive gynaecological surgeon at Jean Hailes for Women's Health in Naarm/Melbourne.
Pav Nanayakkara says UTI tests available at chemists and supermarket can help confirm someone should make an appointment.
Dr Nanayakkara says at-home tests could be useful for people who've had a UTI before and recognise the symptoms.
"They're a really good first port of call if you wanted to check — particularly if you're not able to get to a doctor straight away."
An at-home test can "give you that confirmation" if something doesn't quite feel right, and it may help facilitate an appointment, she says.