Background: Inflammatory bowel disease (IBD) remains an incurable illness. Patients with IBD show gender-specific differences in various aspects of the disease. There is still uncertainty about the causality of the differences. Methods: The aim of this study was to determine the most relevant psychophysiological gender-specific differences in IBD. For this purpose, a questionnaire survey was conducted on disease activity and psychological concomitant diseases in patients with IBD (n = 300). Among the 218 patients with IBD who provided gender information, both genders were equally distributed. Results: Females with IBD are significantly more affected by IBD-related symptoms than men. Disease activity Scores Harvey-Bradshaw Index (HBI), Partial Mayo Score (pMAYO) showed no significant differences between the sexes in the subgroups with CD (HBI, m: 3 (IQR 1–6), w: 4 (IQR 2–8), p = 0.0677) and UC (pMAYO, m: 1 (IQR 0–4), w: 3 (IQR 0–5), p = 0.2118). IBD Questionnaire (IBDQ)shows significant differences in the gender-specific analysis. The mean value of the IBDQ total score of the female participants was 4.4 (SD 1.1) and that of men was 5.0 (SD 1.0) (p = 0.0002). Conclusions: There is a great need to investigate the causality of gender-specific differences in greater depth.

Background: Patients with inflammatory bowel disease (IBD) often suffer from extra-intestinal manifestations in addition to intestinal symptoms. One of these is fatigue. Fatigue is described as persistent tiredness with episodes of sudden energy loss, which cannot be relieved by rest or sleep and has a huge impact on quality of life. The aim of this study is to identify possible risk and influencing factors for the development of fatigue in IBD. Methods: For this purpose, a questionnaire survey was conducted at two German university outpatient clinics for IBD (n = 164). Based on this, the frequency and impact of fatigue on daily life was assessed and analyzed in relation to various health parameters such as patient gender, age, disease activity, and laboratory parameters. Results: Of the 164 patients, 86 were men (52.4%) and 78 were women (47.6%). A total of 75 (45.7%) patients had ulcerative colitis, 84 (51.2%) suffered from Crohn’s disease, and 5 (3.0%) had IBD-unclassified. A total of 17 out of the 164 (10.4%) patients denied that fatigue had affected their daily activities in the past two weeks. None of the examined health parameters had a significant impact on fatigue. Conclusions: Fatigue is a common syndrome in IBD patients and affects their daily activities and quality of life. The results of the present study emphasize the need for further research for a better scientific understanding of fatigue in IBD.