What is differance between foly, silicon and foly silicon urinary catheter? and for what can be use?

Yes, it can be ...: Foley's catheter is the one with retaining balloon to keep it safely inside the bladder/ silicon is the material used to produce catheter, which is known to be less irritated to the urethra, but not much different for most people. Ask knowledgeable professionals for details. Best...

Same thing: You describe the same thing; a Foley is a urunary catheter, sometimes made of silocone, and is placed in the urethra ; used to drain out the urinary bladder. Often these are used during or after an operation or if there is urinary blockage from an enlarged prostate.