Definition of Cystitis - recurrent:

Recurrent cystitis is a bladder infection that occurs at least twice in 6 months, or three times in a year.

See also: Urinary tract infection

Causes, incidence, and risk factors:

Recurrent cystitis is most often caused by a type of bacteria called Escherichia coli (E. coli), the leading cause of all urinary tract infections. About 25 - 50% of all young, healthy women who have their first infection will develop a second one within 6 months. Although the risk for cystitis increases with age, the rate of recurrent infections is only about 10 - 20% for people older than 60.

Risk factors for recurrent infections include:

• Certain anatomical problems of the female pelvis
• Certain large kidney stones
• Diabetes
• Family history of recurrent infections
• First infection at a young age
• Sexual intercourse with multiple partners
• Stents used to treat urinary obstructions
• Use of spermicides

Persons who do not empty their bladder completely may also be at risk for developing repeated infections.