womens health vaginal knot on the inside and painful
From your symptoms,it looks like a Bartholin’s abscess or cyst. There are glands in the vaginal lips called Bartholin’s glands. These can become painful and swollen, and an abscess can form.
Other possibilities are sebaceous cysts (accumulations of secretions that can occur anywhere on the skin or mucosal surfaces), lipomas (fatty deposits) ,fibromas (fibrous tissue deposits) or viral warts(small raised pimples to a mass of large, cauliflower-like growths. The virus that causes them is passed on during sex).
An examination by a gynecologist will be the best as it is only after an examination that it will become clear what the swelling(knot) that you have noticed is due to.
Hope it helps.Kind regards.