Platyhelminthes are also known as flatworms because they are worms with a flat body. This is the main external morphological feature that differentiates them from nematodes (roundworms).
Even though 85 percent of kidney stones are small enough to pass during urination, fewer than 50 percent of patients chose this option. A person with a normal-size ureter can usually pass a kidney stone with a diameter less than 5 mm (about 3/16 of an inch) without significant pain or risk of kidney damage.
Hello sir ,i have kidney stone of size 1cm in upper ureter .i want to know that is it necessary for operation or medicine are sufficient. Reply. Any stone above 5mm becomes more difficult to pass. 1cm is a medium stone that will not pass on its own. Iâve had several all 2 to 5 mm and they hurt like hell.