What is a common physical sign of excessive purging?

Tooth enamel erosion is a common physical sign of excessive purging, especially in individuals who engage in behaviors such as vomiting as a means to control weight. The acidic nature of gastric juices can erode the enamel on teeth when someone frequently purges, leading to increased sensitivity, discoloration, and heightened risk of cavities. The erosion occurs due to the stomach acid coming into contact with the teeth repeatedly, which can significantly degrade the protective enamel over time.

In contrast, weight gain, stable blood glucose levels, and normal digestion would be atypical outcomes of excessive purging. Weight gain may occur in some individuals who may compensate for their purging behaviors with increased food intake. Stable blood glucose levels are usually not affected by purging unless accompanied by a varied diet, and normal digestion is generally disrupted in those who regularly purge, resulting in a range of gastrointestinal issues. Thus, tooth enamel erosion clearly signifies the detrimental effects of such purging behaviors on oral health.