Last summer I strictly drank Lipton green tea as part of a diet regimen. I began feeling a pain in the stomach and the symtpons of a urinary tract infection. I noticed that after I quit drinking this tea and stuck to water the infection disappeared.
No, green tea does not cause UTIs (urinary tract infections). It is thought though that green tea might prevent bladder inflammation but studies need to be done to verify it. The most common cause of UTI is improper wiping which is why they are also far more common in females than in males.
To prevent UTIs:
when you have to go, go! don't put it off
drink plenty of fluids
wipe front to back
showers instead of baths
avoid hygiene sprays
avoid douches
.
Attention Ladies, this is Suzi, many people have been writing in asking what the stuff was that I used to clear up my UTI last week, so I wanted to put the link to this stuff here
It is called CT - DM 
No, green tea does not cause UTIs (urinary tract infections). It is thought though that green tea might prevent bladder inflammation but studies need to be done to verify it. The most common cause of UTI is improper wiping which is why they are also far more common in females than in males.
To prevent UTIs:
when you have to go, go! don't put it off
drink plenty of fluids
wipe front to back
showers instead of baths
avoid hygiene sprays
avoid douches
References :
I'm an R.N.