Again if big gland of urethral caruncle, vestibule is phlogistic, perineal ulcer, Hymen is phlogistic wait, as a result of coital tenderness, can produce defence sex reflex.

• 再如尿道肉阜、前庭大腺炎、会阴溃疡、处女膜炎等，由于性交触痛，可以产生防御性反射。