Menstrual cups are a feminine hygiene product increasingly being used in place of tampons or sanitary napkins. The cup is bell-shaped and seals against the vaginal wall just below the cervix. Instead of absorbing the menstrual fluid like tampons or sanitary napkins, menstrual cups store menstrual fluid for later removal. This makes them reusable, which has become the major driver for the menstrual cup market. The high prices of tampons and sanitary pads, as well as the need to keep replacing them at regular intervals, have made menstrual cups a highly attractive alternative.