There are different reasons. Urologists use catheters to examine patients, in hospitals and care homes they are a remedy for those who can’t urinate in the toilet. Users of catheters can also be a incontinent mobile person with a corresponding medical diagnosis who cannot use large shaped pads, diapers or pads. For them draining systems like catheters, which are combined with urine bags, support an active, self-determined life. On the other hand, there is a risk of infection.