Lipoma, sebaceous cyst, and abscess are common causes of bumps on the back under the skin. See your health care provider for a specific diagnosis in your case.
a painless bump
A cyst
basically your spine ........its usually painless
Some cases of scoliosis are painless because the curvature of the spine may be minor and the spine doesn't shift alot. Some cases are painful because it normally becomes painful when your spine is curving more and pushing your shoulders in a weird posistion causing the pain.
it could be either a mantaray or a stingray.
Well it depends: I have a painless lump on the base of my neck but that's part of my spine! I'm guessing it is the same for you. But if you're really worried and think it is something different, then you should seek out a doctor's advice.
Metastatic carcinoma (cancer).
SMALL
Your spine can curve for several reasons, including Scoliosis. Improper posture also plays a large part in a curved spine.
Any lump (painless or not) is cause for concern. I would get it checked out, it may be nothing....but it could be something serious, you should get it checked early. It could be something as innocous as harmless skin lump or it could be something more, go to the doctor to be checked out.
The sacrum is a large triangular bone at the base of the spine.
Since girls are smaller in size than boys, typically, their spine is smaller as well (though not by much). If the girl has large breasts, there could be stress on the spine, contorting it, though this isn't usually an issue. The simple answer is that, there's no difference from a biological point of view. From a philosophical point of view, a girl's spine differs from a boy's spine in that one belongs to a boy and the other to a girl.
Your spine is not programmed to respond to anything. there are important nerves that run down your spine. if these are injured you could be paralysed.
scolosis