Hello there, thanks for your query! I would have wished to know if you are sexually active and if the sore spot you are mentioning looks like an ulcer or a peanut sized swelling or grape like, if that is what you meant by growth and if it hurts and if you have associated burning sensation when you pee or any vaginal discharge. A painful ulcer can indicate a sexually transmitted infection like herpes, soft chancre . And painless ulcer could ba a hard chancre. Or it could be cystic swellings of glands of vestibule ( are inside labia) which may or may not have been infected. Apart from these, as you mentioned it as growth, it may require a biopsy to determine what exactly it is. Because the possibilities are numerous, I suggest you see your OB/GYN or GUM ( genito urinary medicine ) doctor for appropriate evaluation and care. Hope this helps. Take care !