Bulimia

Bulimia Nervosa: Signs, Health Effects, and Treatment

Bulimia nervosa is a serious eating disorder marked by a cycle of binge eating followed by behaviors meant to make up for it. These can include self-induced vomiting, misuse of laxatives or diuretics, fasting, or excessive exercise. The cycle is often driven by intense feelings of shame and a self-worth that's closely tied to body shape and weight.

Bulimia is one of several conditions within the broader category of eating disorders. Many people with bulimia are at an average or above-average weight, so the disorder often goes unnoticed by family, friends, and even healthcare providers. Despite being hidden, bulimia can cause serious and sometimes life-threatening health problems.

The good news is that bulimia is highly treatable. Evidence-based therapy helps many people break the binge-purge cycle and build a healthier relationship with food and their bodies.

What Is Bulimia Nervosa?

Clinicians diagnose bulimia when a person has:

• Recurring episodes of binge eating, meaning eating an unusually large amount of food in a short period while feeling a loss of control

• Recurring compensatory behaviors to prevent weight gain, such as vomiting, laxative or diuretic misuse, fasting, or excessive exercise

• Binge eating and compensatory behaviors that happen, on average, at least once a week for three months

• A self-evaluation that's unduly influenced by body shape and weight

Bulimia is closely related to binge eating disorder. Both involve recurring binge episodes, but people with binge eating disorder don't regularly use compensatory behaviors. Bulimia also shares features with the binge-eating/purging type of anorexia nervosa. People with anorexia, however, are at a significantly low body weight.

Signs and Symptoms of Bulimia

Because people with bulimia often keep their behaviors secret, signs can be subtle.

Behavioral signs may include:

• Evidence of eating large amounts of food, such as missing food or hidden wrappers

• Frequent trips to the bathroom during or right after meals

• Signs or smells of vomiting

• Laxative, diuretic, or diet pill packaging

• Rigid dieting or fasting between binges

• Excessive exercise

• Secrecy around food and eating

Emotional signs may include:

• Intense preoccupation with weight and body shape

• Feelings of shame, guilt, or disgust after eating

• Mood swings, anxiety, or depression

• Feeling out of control around food

Physical signs may include:

• Frequent weight fluctuations

• Swelling in the cheeks or jaw area

• Calluses or scrapes on the knuckles

• Tooth sensitivity, discoloration, or enamel erosion

• Sore throat, acid reflux, or other digestive problems

• Fatigue, dizziness, or fainting

What Causes Bulimia?

Bulimia develops from a mix of biological, psychological, and social factors.

Biological factors. Eating disorders often run in families, and genetics play a role. Differences in brain systems involved in mood, impulse control, and appetite may also contribute.

Psychological factors. Low self-esteem, perfectionism, and difficulty managing intense emotions are common. For many people, binge eating becomes a way to cope with stress, sadness, or anxiety, and purging becomes a way to relieve the guilt that follows. Learning healthier emotional regulation skills is often a key part of recovery.

Environmental and social factors. Chronic dieting is one of the most common triggers for bulimia. Cultural pressure around thinness, weight-focused activities, trauma, and stressful life changes can also contribute.

Health Effects of Bulimia

Repeated bingeing and purging can take a serious toll on the body:

• Electrolyte imbalances. Low potassium and other imbalances can cause dangerous heart rhythm problems, and they can occur suddenly.

• Dental damage. Stomach acid from vomiting can erode tooth enamel and cause cavities.

• Digestive problems. These include acid reflux, damage to the esophagus, and bowel problems from laxative misuse.

• Dehydration and kidney problems. These can result from purging and diuretic misuse.

• Swollen salivary glands, which can make the face appear puffy.

• Hormonal changes, including irregular menstrual periods.

Because some of these complications can be life-threatening, anyone with signs of bulimia should have a medical evaluation.

Co-Occurring Conditions

Bulimia often occurs alongside depression, anxiety disorders, trauma-related conditions, and substance use disorders. Some people also struggle with self-harm. Integrated treatment for co-occurring disorders addresses the eating disorder and these related conditions together.

How Bulimia Differs From ARFID

Avoidant/restrictive food intake disorder (ARFID) is another eating disorder, but it looks very different from bulimia. ARFID involves limited eating driven by sensory sensitivities, low appetite, or fear of choking or vomiting. It doesn't involve binge eating, purging, or concerns about weight and shape.

Treatment for Bulimia

Bulimia is typically treated by a team that may include a therapist, physician, psychiatrist, and registered dietitian who specializes in eating disorders.

Therapy

• Cognitive behavioral therapy, especially the enhanced version designed for eating disorders (CBT-E), is considered a first-line treatment for bulimia in adults. It helps people establish regular eating, break the binge-purge cycle, and challenge thoughts about weight and shape.

• Dialectical behavior therapy teaches skills for managing intense emotions, tolerating distress, and reducing impulsive behaviors. This can be especially helpful when binge eating and purging are tied to emotional triggers.

• Family-based treatment (FBT). For teens with bulimia, FBT involves parents directly in supporting recovery.

• Interpersonal psychotherapy (IPT). IPT focuses on relationships and life circumstances that may fuel the eating disorder.

Nutritional Support

A registered dietitian helps establish regular, balanced eating patterns. Regular eating reduces the physical and psychological drive to binge, which in turn reduces the urge to purge.

Medication

Fluoxetine, an antidepressant, is FDA-approved for treating bulimia nervosa in adults. Medication is usually most effective when combined with therapy. A psychiatrist can determine whether medication is appropriate.

Levels of Care for Bulimia

Many people with bulimia can be treated in outpatient therapy. Others need more support, especially if they have medical complications, frequent purging, or co-occurring conditions.

• Outpatient therapy offers weekly sessions with a therapist and dietitian.

• Intensive outpatient programs (IOP) provide several hours of structured treatment per week.

• Partial hospitalization programs (PHP) offer full-day treatment, often including supported meals, while the person lives at home.

• Residential treatment provides 24-hour support for people who need a higher level of care.

• Medical inpatient care stabilizes serious medical complications, such as severe electrolyte imbalances.

How to Support a Loved One With Bulimia

If you suspect someone you care about has bulimia, choose a private, calm moment to share your concerns. Focus on specific behaviors you've noticed and how much you care about them, rather than on food or weight. Expect that they may feel ashamed or deny the problem, and encourage them to talk to a doctor or eating disorder specialist.

Avoid comments about bodies, dieting, or "good" and "bad" foods. These can reinforce the thinking patterns that keep bulimia going.

Finding Bulimia Treatment in California

Our California directory includes providers that treat bulimia and other eating disorders, from outpatient therapists to intensive outpatient, partial hospitalization, and residential programs.

When comparing options, look for eating disorder specialization, evidence-based therapies such as CBT-E and DBT, access to medical monitoring and nutrition support, and treatment for any co-occurring conditions. With the right care, recovery from bulimia is very possible.

If you or someone you love is in crisis or experiencing thoughts of suicide, call or text 988 to reach the 988 Suicide & Crisis Lifeline, or text HOME to 741741 to reach the Crisis Text Line. If someone is fainting, has chest pain, or has an irregular heartbeat, call 911 or go to the nearest emergency room.