Is there an association between mastalgia and fibromyalgia? Comparing prevalence and symptom severity.

To determine the prevalence of mastalgia in patients with fibromyalgia (FM) and the prevalence of FM in patients with mastalgia in order to investigate coexistence, and to compare the pain patterns in the case of mastalgia or FM alone versus the two in combination. Fifty consecutive patients with mastalgia and 50 consecutive patients with FM were assessed and examined both for the existence and severity of mastalgia and FM. A high proportion of patients with mastalgia (36%) fulfilled the criteria for FM and 42% had mastalgia in the FM group. Two distinctive entities mastalgia and FM, being both unexplained pain syndromes, seem to frequently coexist. Patients with mastalgia or FM should be thoroughly questioned considering each of the diseases so that in case of coexistence an appropriate therapy might be implemented for a successful pain management.