no. it's not likely due to the semen. semen is not acidic to the point of causing this type of soreness. guessing i would say it is more likely the physical act itself that is causing some soreness. assuming you do not have an underlying vaginal infection using a water-based lubricant during sex may help.
can a man's semen cause discomfort after sex and he dose not ave an std? . after having intercourse i feel sore. it is not the same feeling as not having sex for a while or from prolonged rubbing/ fraction during sex. can a man have a high acid content that may cause this discomfort?