Menstrual cup side effects

Menstrual cups are generally safe to use, but there are some potential side effects, including:
Irritation
This can be caused by inserting the cup without lubrication or using a cup that's too big. To prevent irritation, you can apply a small amount of water-based lubrication to the outside of the cup.
Infection
Menstrual cups can store a medium that allows bacteria to grow, which can increase the risk of infection. However, infection is a rare complication.
Toxic shock syndrome (TSS)
TSS is a rare but serious complication that can result from certain bacterial infections.
Hydronephrosis
This is a rare side effect that can occur if the menstrual cup is positioned incorrectly.
Pelvic organ prolapse
Misuse of a menstrual cup can cause pelvic organ prolapse.
If you experience pain, urinary problems, or infection, you should stop using the menstrual cup and speak to a doctor or gynecologist