“The CT scan [showed] that the cup was positioned in the right side of the vagina, thereby compressing the opening from the ureter to the bladder. The ureter is the tube that drains urine from ...

Doctors are advising women to take care using menstrual cups, after one user developed temporary kidney problems because the cup was misaligned. The patient, in her 30s, had been experiencing ...

which is the tube that carries urine to the bladder. Right at that critical juncture, imaging showed the edges of a menstrual cup butting up against the ureter's opening and compressing it.