Where do you enter a catheter?

A catheter can be entered into the body through various sites depending on its purpose. For intravenous (IV) catheters, insertion is typically done in a vein, commonly in the arm or hand. For urinary catheters, insertion occurs through the urethra into the bladder. In certain medical procedures, catheters may also be inserted into arteries or through the skin into organs, such as in the case of central venous catheters.