Vaginal lumps, what is it?!

Vaginal lumps, what is it?

I have recently developed a lump in my vagina, it is about 2cm in diametre, painful and pain if felt when i walk due to pressure on it.

It cannot be squeezed and the lump is quite hard.

it's painful to touch and has what looks like a blueish purple circle in the middle of it.

Is it a cyst, And I've never had one or heard of one with the purple centre.

Anyone got any ideas that could help put my mind at rest, will it just go away by itself

Sebaceous Cysts
Have you ever found a small lump or a bump on your body, perhaps near your vagina or on your genitals? One of the questions women ask me most are about these small bumps or lumps just under the skin, of course women are most often worried when these occur in the vaginal area.
It is not uncommon for women to fear that these bumps or lumps under the skin may be genital herpes. The fact is that genital herpes creates a completely different kind of sore -- a blister-type sore that eventually becomes crusty -- not just a bump or lump under the skin. Very often, after careful inspection by a qualified health care professional, these under-the-skin bumps and lumps are found to be sebaceous cysts which are sometimes called epidermal cysts.

Although sebaceous cysts are usually found on the face, neck, and trunk, they also many times occur in the vaginal area or other parts of the genitalia of both women and men.

Sebaceous cysts are usually painless, slow-growing small bumps or lumps that move freely under the skin. It's important not to touch or try to remove the substance inside to prevent tenderness, swelling, and infection of a sebaceous cyst.
What is a sebaceous cyst?
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http://womenshealth.about.com/b/a/162261...

http://health.yahoo.com/ency/healthwise/...
http://www.doctorslounge.com/gynecology/...
http://www.medhelp.org/forums/womensheal...