Table 4. Prevalence of co-occurrent pain symptoms in burning mouth syndrome (BMS) patients’ samples and in the general population.

Pain syndromes	Prevalence of the pain symptom in the study sample	Prevalence of the pain symptom in the general population of equivalent age
Temporomandibular disorders	12 to 66% [20,21,29,30]	44 to 50% [44,47]
Headaches	4 to 40% [16,23,25,30,41]	46% with active headache [50]
Abdominal pain	17% [16]	IBS in 6–18% [43]
Genital pain	2 to 12% [16,30]	7 to 8% [45,49]
Back pain	19 to 44% [16,26,30]	29% [48]
Widespread musculoskeletal pain (fibromyalgia)	4 to 8% [16,23,27,30]	2 to 8% [46]