Causes of vulval pain are due to all except:

Vulval pain syndrome Vulvar pain sensation may be burning, stinging or irritation. It may be due to several reasons: Aphthous ulcer Vulval dermatoses Herpes genitalis Pudendal or genitofemoral nerve neuralgia Vulvodynia (burning vulva syndrome) Vulval vestibulitis syndrome Referred pain from urethral or vagina Psychological