The signs and symptoms of eating disorders vary depending upon which type of eating disorder is present. Generally, individuals with eating disorders may exhibit signs such as rapid weight loss or weight fluctuations, excessive or compulsive exercising and episodes of chronic binge eating that may or may not be followed by fasting and/or purging behaviors (e.g., self-induced vomiting, diuretics). Other symptoms include chronic fatigue or lightheadedness, menstrual irregularities, dehydration, hair loss, swollen cheeks (from self-induced vomiting), dental problems (e.g., tooth and gum decay), bowel problems, depression, irritability or insomnia.

The signs of pica, a less common type of eating disorder, which is characterized by the chronic craving and consumption of nonfood items (e.g., dirt, clay), include dental injuries, abdominal pain, diarrhea and/or constipation in addition to recurrent infections or parasitic infestations.

The signs and symptoms of rumination disorder, another less common type of eating disorder, include:

• Chronic and effortless regurgitation that typically begins within minutes of a meal and may last for several hours
  
  
• Repeated re-chewing of food
  
  
• Unexplained weight loss, growth failure (in children)
  
  
• Bad breath (halitosis)
  
  
• Indigestion
  
  
• Dental problems (e.g., tooth decay and erosion)
  
  
• Raw or chapped lips
  
  
• Vomit residue on the individual’s chin, neck or upper clothing