Does blue rubber bleb syndrome cause fibromyalgia?

No, blue rubber bleb syndrome does not cause fibromyalgia. Blue rubber bleb syndrome (BRBS) is a rare genetic condition that affects the blood vessels. It is characterized by the formation of small, bluish-red, fragile bumps on the skin and mucous membranes. These bumps are caused by abnormal blood vessel development and can bleed easily. BRBS does not cause fibromyalgia, a chronic condition that causes widespread pain, fatigue, and a variety of other symptoms.