All of the following are contraindications of diaphragm usage except
Multiple sex partners (MSP) is the measure and incidence of engaging in sexual activities with two or more people within a specific time period. Sexual activity with MSP can happen simultaneously or serially. 
MSP includes sexual activity between people of a different gender or the same gender.
MSP can also mean that one person may have a long-term relationship or relationships, and when the second relationship begins, the person can be said to have multiple sex partners.
Another term, polyamorous, is a behaviour and not a measure describing multiple romantically sexually or romantically committed relationships at the same time.
Multiple sex partners
Recurrent infections
Uterine prolapse
Herpes vaginitis