Ankylosing Spondylitis is a type of joint pain that affects the joints of spine. The constant inflammation makes the bones of the spine become fuse. Ankylosing Spondylitis is more common in men as compared to female. Ankylosing Spondylitis usually affects the individuals of early age between 15 to 30 years of age. Ankylosing Spondylitis inflames the Sacroiliac joint located between the base of spine and pelvis. Ankylosing Spondylitis brings about the expanding and fusion of the vertebrae and causes back stiffness. Symptoms of Ankylosing Spondylitis may include lower back pain and stiffness, hip pain, joint pain, unexplained weight loss , abdominal pain and diarrhea. neck pain, difficulty breathing, fatigue, loss of appetite.