Urological catheters are flexible tubes inserted into the bladder to drain urine. They are commonly used for patients who cannot urinate naturally due to medical conditions, surgeries, or injuries. These catheters can be temporary or long-term, depending on the patient's needs. There are various types of urological catheters, including intermittent catheters, indwelling catheters, and suprapubic catheters. Each type serves a specific purpose and is chosen based on factors like the duration of use and the patient's health status. Proper care and hygiene are essential to prevent infections associated with catheter use.