The aim is to explore the human urine composition and its relation to urine tract infections

Inclusion Criteria:

1. Have given written informed consent
2. Be at least 18 years of age and have full legal capacity
3. For the 2 patient populations: Use intermittent catheter on a daily basis due to neurogenic bladder or enlarged prostate and have used IC for at least 2 months
4. For healthy volunteers without UTIs: No diag-nosed UTIs within the last year
5. For healthy volunteers with recurrent UTIs: 3 or more UTIs within the last year or 2 UTIs within the last 6 months (treated with antibiotics)

Exclusion Criteria:

1. Be treated for urinary tract infection at time of enrolment
2. May not take prophylactic treatment for urinary tract infections (antibiotics only)

The study population consists of danish subjects and will consist of healthy volunteers as well as users of intermittent catheter (neurogenic bladder or enlarged prostate) with and without reoccurring urine tract infections.