Spondyloarthritis is a heterogeneous group of chronic inflammatory musculoskeletal diseases that have similarities in clinical, serologic, radiologic and immunogenetic features. Group includes ankylosing spondylitis, psoriatic arthritis, reactive arthritis, enteropathic arthritis and undifferentiated spondyloarthritis. Division into axial and peripheral spondyloarthritis is possible as well. Axial spondyloarthitis is mainly characterised by inflammatory back pain and stiffness of spine, whilst peripheral form has arthritis, enthesitis or dactylitis. Extra-articular manifestations are inflammatory bowel disease, psoriasis and uveitis. HLA-B27 is important genetic factor, which is present in more than 95% patients with ankylosing spondylitis, whereas it is only present in 10% of general population. Changes in microbiota,gut dysbiosis, are possibly disease trigger. Iflammatory bowel diseases that show possible connection to spondyoarthritis are Crohn's disease and ulcerative colitis. Both bowel diseases are chronic with remissions and relapses. Ulcerative colitis affects only colon, while Crohn's disease can affect any part of gastrointestinal tract. Bloody diarrrhea is main symptom in ulcerative colitis, but it is less common in Crohn's disease which is characterised by abdominal pain, diarrhea and weight loss. Arthritis often occurs as extraintestinal manifestation in both diseases. Sacroilitis is radiologic finding in more than 20% patients and inflammation of peripheral joints in 20% cases. Conversely, inflammatory bowel disease occurs in 6-14% ankylosing spondylitis cases. Links between spondyoarthritis and inflammatory bowel diseases could be genetic factors, gut dysbiosis and migration of cells from gut to joints.