2. Recurrent Cystitis - Symptoms, Diagnosis, Treatment of Recurrent Cystitis - NY Times Health Information
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...
health.nytimes.com

3. Family history of UTI increases susceptibility to recurrent cystitis and pyelonephritis
Genetic factors may influence susceptibility to infections such as recurrent urinary tract infection (UTI). The role of family history in the risk of recurrent cystitis and pyelonephritis in women was investigated in a case-control study. A total .....
www.ttmed.com