To demonstrate the burden of sexual dysfunction (SD) among females with rheumatic diseases, we conducted a cross-sectional comparative study in patients with systemic sclerosis (SSc), systemic lupus erythematosus (SLE), and Behçet’s syndrome (BS) along with suitable healthy controls (HCs). Age-matched female patients with SSc (n = 50), SLE (n = 49), and BS (n = 54), along with 52 female HCs were included in this study between April and October, 2021. Sociodemographic features were recorded, and psychometric tests, i.e., female sexual function index (FSFI), Beck depression inventory (BDI), body cathexis scale, and marital adjustment test (MAT) were performed. Scale scores were compared, and binary logistic regression was used to identify predictors for SD in the whole group. The total FSFI and body cathexis scores among the patient groups were significantly lower than those of the HCs (p < 0.001). Depression was significantly more frequent in the patient groups. MAT scores did not differ significantly between the study groups. Patients with SSc had the worst scores in each psychometric index, including MAT. Decreased body cathexis score [OR 0.974, 95% CI (0.957–0.991), p = 0.003] and low MAT score [OR 0.937, 95% CI (0.896–0.980), p = 0.005], and being diagnosed with SSc [OR 6.6, 95% CI (1.975–22.498), p = 0.002], SLE [OR 2.7, 95% CI (0.998–7.753), p = 0.050], and BS [OR 2.8, 95% CI (1.100–7.359), p = 0.031], were identified as independent predictors for SD. Body cathexis seems to be the most important independent predictor for SD, and the burden of SD appears heavier in patients with SSc, probably due to poor body image satisfaction.
