What about a lump on right side in back under hairline?

If you have a lump on the right side of your back under your hairline, it is important to see a doctor to get it checked out. There are many potential causes of lumps in this area, some of which can be serious.

* Lipoma. A lipoma is a benign (non-cancerous) tumor of fat cells. Lipomas are usually soft, movable, and painless, and they can occur anywhere on the body, but they are most common on the back, thighs, and arms.

* Cyst. A cyst is a sac-like structure filled with fluid or semi-solid material that can form anywhere on the body. There are many different types of cysts, but the most common type is the epidermal cyst, which is caused by a blocked sebaceous gland.

* Hemangioma. A hemangioma is a benign tumor of blood vessels that can occur anywhere on the body. Hemangiomas are usually red or purple, and they can range in size from small pinpoint dots to large, raised bumps.

* Neurofibroma. A neurofibroma is a benign tumor of nerve tissue that can occur anywhere on the body, but they are most common on the back, neck, and arms. Neurofibromas are usually small, flesh-colored bumps that can cause pain or tingling if they press on a nerve.

* Cancer. While most lumps on the right side of the back under the hairline are benign, some can be cancerous. This is why it is important to see a doctor if you have any new lumps or changes in your skin.

Your doctor will be able to examine the lump and determine the cause. If necessary, they may order additional tests, such as a biopsy, to further evaluate the lump.