List 4 factors that increase a client’s risk of developing a uti.

Most of the time infections begin in the urethra, the tube that drains the bladder.
there are many factors that can increase a client's risk of a UTI. 

For example... 
obstruction in the urinary tract, such as kidney stones or any other sort of implicant that can complicate everything severely.

If you go to the bathroom irregularly, or for postmenopausal women even shift slightly that can risk your chances of developing.  

Studies have shown that women who use diaphragms have a much higher chance of UTIs.

There are many other things that can put you at risk for a UTI. I hope this helps at least somewhat.  

Iwould say being around others who are not drug free is the wrong step because your peers are likely to influence any new or past habits