Urinary Tract Issues
Dr. Lisa Pierson has done a more thorough job than I could ever hope to summarizing the causes and management of feline cystitis, urethral obstruction, and urinary tract Infection issues.
Excerpt from Dr. Pierson's web page on urinary tract health:
If I could have the reader of this webpage take away just one word from this discussion, it would be "water". If your cat is on a properly hydrated diet of 100% canned food - and no dry food - you stand a very good chance of never needing to read this webpage.
A Korean-language translation of this page, courtesy of Eunsoo Lee, is available at this link. Thank you Eunsoo!
The full text of Dr. Pierson's article on urinary tract issues is available on her web page.