 [ Symptoms ] can a man is 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 [ Disease ] no it is 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