Relationship Between 25-Hydroxyvitamin D and Vitamin B12 Levels and Neuropathic Pain in Patients Diagnosed with Lipedema

Background: Pain is a prevalent symptom in patients with lipedema predominantly impacting the lower extremities. This study aimed to evaluate the relationship between 25-hydroxyvitamin D [25(OH)D] and vitamin B12 levels and neuropathic pain (NP) in patients diagnosed with lipedema. Methods and Results: A total of 243 patients with lipedema who had 25(OH)D and B12 levels measured in the past 6 months were included in this study. Participants were divided into two groups: Group 1 (N = 78) with NP scores ≥13 and Group 2 (N = 165) with NP scores <13. The Turkish version of the painDETECT questionnaire was used to assess the patients' NP symptoms. Pain levels were measured using the Visual Analog Scale (VAS) and pain threshold through algometric measurement. Group 1 had significantly higher palpation and spontaneous VAS scores, and pain threshold through algometric measurements than Group 2 (p < 0.05). No statistically significant difference was found between the groups regarding vitamin D levels being below 30 ng/mL or vitamin B12 levels being below 400 pg/mL (p > 0.05). Conclusions: No association was found between NP and 25(OH)D or B12 levels in patients with lipedema.