Bulimia and anorexia are both serious eating disorders, but they usually look different in how eating and weight are affected.

Main difference

  • Anorexia usually involves severe restriction of food intake, intense fear of gaining weight, and significantly low body weight.
  • Bulimia usually involves episodes of binge eating followed by compensating behaviors like vomiting, laxatives, fasting, or excessive exercise.

How they can look

Condition| Typical eating pattern| Typical weight pattern| Common behaviors
---|---|---|---
Anorexia| Restricting food, eating very little 12| Often significantly underweight 26| Skipping meals, rigid food rules, hiding the body, fear of weight gain 19
Bulimia| Bingeing, then purging or other compensation 12| Often normal weight or sometimes higher weight 58| Vomiting, laxative misuse, excessive exercise, secrecy around eating 110

Shared features

Both conditions can involve a strong focus on body shape, weight, and food, and both can cause serious medical harm. They can also overlap in some symptoms, which is why only a clinician can sort them out properly. A less common anorexia subtype can include bingeing and purging, which can make it look similar to bulimia.

When to get help

If this question is about you or someone close to you, it’s important to seek medical or mental health help soon, especially if there is rapid weight loss, fainting, vomiting, laxative use, or trouble eating normally. These disorders are treatable, and early help usually makes recovery easier.

TL;DR: anorexia is mainly about restriction and low body weight , while bulimia is mainly about bingeing and purging , often without being underweight.