When ankylosing spondylitis involves cardiovascular and pulmonary tissues, it may cause lower limb edema.
When ankylosing spondylitis involves the spine alone, there will be no edema in the lower limbs. The more common symptom of the disease is lumbar pain, which is mainly characterized by resting pain, and the symptom will be aggravated at night and in the morning, and the symptom will usually be relieved after activities.
However, some patients with ankylosing spondylitis have a more serious condition, which may cause cardiovascular lesions and predispose them to diseases such as pericarditis and myocarditis. It may also accumulate in the lung tissue and induce interstitial pneumonia. When the condition further aggravates, resulting in cardiovascular function and lung function being affected, it will cause lower limb edema.
It is recommended that patients with ankylosing spondylitis go to the rheumatology and immunology departments of regular hospitals for detailed consultation.