URINARY TRACT INFECTION (UTI) IS A BACTERIAL INFECTION OF THE URINARY TRACT.
The commonest causative agent is Escherichia Coli. It must be remembered that even though urine contains so called waste products of the body, it does not contain bacteria. However if bacteria enters the urinary system and multiplies, it can reach a critical concentration to cause a urinary infection which in selected situations can cause sepsis and even death.
There are two kinds of urinary infections, upper tract or kidney infection and lower tract or bladder infection. Lower tracts infection are more common and occur >95% of all UTI and the women present with pain passing urine (dysuria), urinary urgency and frequency and sometimes blood in the urine with fever. Upper tract infection are less common but potentially more serious. Patients can complain of flank pain and high fever and may even have a drop in blood pressure if sepsis occurs. Elderly patients with lower immunity status example in diabetics or those with retention of urine are at higher risk to be overwhelmed with infection.