The small, flexible cup is made of silicone or latex rubber. Instead of absorbing your flow, like a tampon or pad, it catches and collects it. Just before your period begins, tightly fold the menstrual cup and insert it like a tampon without an applicator. … The blood then simply drips into the cup.

Why are menstrual cups bad?

Because the device has to be inserted into the vagina, there has been a long-standing concern that menstrual cups cause toxic shock syndrome (TSS). The researchers found that in the study sample, there were only five reported cases of TSS, a potentially fatal condition caused by the bacteria Staphylococcus aureus.

Can menstrual cup damage cervix?

Overtime pulling on the cervix with the cup may cause a prolapse, but it would need to be A LOT of resistance to get this to happen. Think about the amount of pressure placed on your pelvic floor during a vaginal delivery (if you had one).