Unlike with anorexia, people with bulimia tend to have a normal body weight, it tends to fluctuate - it involved binge eating, followed by “purging” by inducing vomitting or taking laxatives to prevent calories being absorbed

Presentation

• erosion of teeth
• swollen salivary glands
• mouth ulcers
• gastro-oesophageal reflux and irritation
• Russell’s sign: calluses on the knuckles where they have been scraped across the teeth

Investigations

• Blood gas: Alkalosis (losing HCl)
• hypokalamia