Thank you for your message. Your vulva has a number of glands, including oil glands, Bartholin's glands, and Skene's glands. A cyst can form if these glands become clogged. The size of cysts varies, but most feel like small, hard lumps. Cysts aren't usually painful unless they become infected. This might be a cyst, we cannot know. Don't squeeze it. Keep the area clean. See your GYN for an examination. They can tell you exactly what it is and also drain or remove it in the office.