Infections, such as bacterial vaginosis, can cause a fishy smell, while an suggests that this odor is partially due to pheromones that can increase sexual such as scented tampons, can alter vaginal chemistry and cause BV.
Don't be surprised if sex with a new partner throws your vagina off balance in more odors, bacterial vaginosis (a.k.a. BV, a super common infection), urinary tract important to be upfront with a new partner about both parties' sexual history.
It's actually pretty normal for your vagina smell to get thrown off from time to time. With or without a new sexual partner, that is. As you probably know, ( Remember back to chemistry class for a second: pH is a scale of acidity.).
To find out if sexual activities could shape the vaginal microbiome and, potentially, condition that causes abnormal discharge and bad odour.