serosa[se-rÅâ²sÄ] 1. The outermost coat or serous layer of a visceral structure that lies in the body cavities of the abdomen or thorax; it consists of a surface layer of mesothelium reinforced by irregular fibroelastic connective tissue.
In an abdominal migraine, pain is felt in the abdomen rather than the head. Abdominal migraines are rare in adults, but about 4% of all children with migraines experience abdominal migraines. Children who experience abdominal migraines often go on to suffer migraine headaches later in life. Abdominal migraines can cause severe stomach pain, nausea, abdominal cramping, and vomiting. What causes abdominal migraines? No one knows what causes abdominal migraines. One theory is that abdominal migraines are caused by changes in two chemicals, histamine and serotonin. Both of these occur naturally in the body.
Severe or acute migraines can also cause nausea or vomiting. Women tend to experience these symptoms more often than men. A 2014 study found that people who experience frequent, persistent nausea with a migraine are twice as likely to progress from episodic or infrequent migraine headaches to chronic migraine.