well its on my arm, by my shoulder. It is smooth pinkish/reddish bump, but never an opening on it. what could it be?
Hi,
A keloid scar is benign, non-contagious, and usually accompanied by severe itchiness, sharp pains, and changes in texture.
Keloids and hypertrophic scars do not usually cause symptoms, but they may be tender, painful, or pruritic or they may cause a burning sensation.
What site is the keloid that you mention? Are you having any other symptoms? Are you on any medications?
You could read more about keloids at the following links -
http://www.emedicine.com/DERM/topic205.htm
and
en.wikipedia.org/wiki/Keloid
Let us know if you need any other information.
Regards.