The stomach normally uses muscular contractions, digestive fluids, and coordinated movement to break down food and pass it into the small intestine. Hair behaves differently. Its structure makes it resistant to digestion, and loose strands can become trapped among one another. The stomach’s movements may compact these strands instead of clearing them. If the behavior that introduces hair into the digestive system continues, the accumulation may become progressively larger.
Not every person who swallows a hair develops a bezoar. The condition is uncommon, and the risk depends on multiple factors, including repeated hair ingestion and individual circumstances. In some cases, a trichobezoar is associated with trichophagia, a behavior involving eating or swallowing hair. Trichophagia may occur alongside trichotillomania, a condition characterized by recurrent urges to pull out one’s hair. However, these behaviors should not be assumed in any individual based solely on a photograph or a headline.
A person with a small bezoar may have few symptoms, while a larger one can produce persistent abdominal discomfort. Pain may be felt in the upper abdomen, particularly after eating, and some people may experience nausea, vomiting, bloating, reduced appetite, or early satiety—the feeling of becoming full after eating only a small amount. These symptoms are not unique to bezoars. Many common digestive disorders can cause similar complaints, which is why a
Chapter 1 – Young Woman Suffers Stomach Pain for Months — What Doctors May Discover After Surgery
