What is the cause of superior mesenteric artery compression syndrome?

Superior mesenteric artery compression syndrome may be related to anatomical factors, inflammatory stimuli, trauma and surgery, as well as other factors.

1. Anatomical factors

Some parts of mesentery are narrow and easily compressed by surrounding organs and tissues, such as sigmoid mesocolon and mesorectum.

2. Inflammatory stimuli such

as infectious endocarditis, Crohn's disease and other infectious diseases can damage the muscle and fat tissue around the superior mesenteric artery, thus affecting blood circulation.

3. Trauma and surgical

trauma, surgery and other operations may also damage the blood vessels and nerves around the superior mesenteric artery, resulting in blood flow obstruction, ischemia, necrosis and other problems.

4. Other factors such

as obesity, hypertension, diabetes and other metabolic diseases, as well as pregnancy, age and other individual factors, may also affect the blood circulation of the superior mesenteric artery, thus inducing the occurrence of the disease.