Hello dear. Yeast infections may be able to cause menstrual irregularities. Candida, the yeast organism that causes human infection, contain an estrogen binding receptor protein. This protein produced by Candida locks onto estrogen specifically. This is what some studies say. So if the same thing is continuing during your next periods also kindly consult your gynecologist. But in any case yeast infection will clear up completely once the vaginal Ph becomes acidic again, in a matter of couple of months. So do not worry. Hope i have answered your question. Feel free to contact me if you have any more questions. I ll be glad to help you. All the best With warm regards Dr Sanjay Kini