CRP and hypothyroidism: Before treatment, compared with the hypothyroidism in pregnancy without SIBO group, FT4 was significantly lower in the hypothyroidism in pregnancy combined with SIBO group (p < .001), TSH and CRP were significantly higher (p = .001, p = .012), and there was no statistically significant difference in the percentages of TPOAb, WBC, neutrophils, and neutrophils percentage (p = .709, p = .252, p = .759, p = .835).