I (straight male) cause vaginal irritation after sex to my partners consistently /u/Muted-Produce9999 Sex

This has been happening for years now. Recently got out of a 6year relationship where this to a degree plagued our sexual relationship. I’ve gotten tested for STD’s multiple times and never had a positive result. I don’t, myself, ever really have discomfort with my penis or in that region.. but almost every time I have sex, my partner experiences intense vagial itching and discomfort. To the point that they need see a gynecologist after. I’ve talked to my doctor about this in the past without gaining any insight to cause or solutions. Wondering if anyone has experienced this and give advice towards identifying a cause or solution.. thanks in advance

This has been happening for years now. Recently got out of a 6year relationship where this to a degree plagued our sexual relationship. I’ve gotten tested for STD’s multiple times and never had a positive result. I don’t, myself, ever really have discomfort with my penis or in that region.. but almost every time I have sex, my partner experiences intense vagial itching and discomfort. To the point that they need see a gynecologist after. I’ve talked to my doctor about this in the past without gaining any insight to cause or solutions. Wondering if anyone has experienced this and give advice towards identifying a cause or solution.. thanks in advance