What Is Bigorexia? Signs, Causes, and When Muscle-Building Becomes a Problem

Bigorexia (also known as muscle dysmorphia) can be tricky to spot. After all, working out regularly, paying attention to what you eat, or wanting to build muscle aren’t inherently concerning—and in fitness culture, pushing yourself hard is often celebrated.

In fact, in Equip’s May 2026 survey of more than 1,000 men, 65% said that working out for hours a day is a sign of discipline.

But there’s a point where the drive to get stronger or more muscular becomes something more concerning. Bigorexia is a form of body dysmorphic disorder (BDD) in which someone becomes preoccupied with the belief that they aren’t muscular enough, according to the International Journal of Clinical Practice. That can start to shape how they eat, exercise, socialize, and cause negative and harmful feelings about themselves.

And because many of these changes can look like dedication from the outside, people may not realize they’re struggling or deserve help. Fortunately, understanding what bigorexia actually looks like can make it easier to recognize when fitness goals go too far and deserve attention and support.

What is bigorexia?

“Bigorexia is an informal term used to describe the overlap between muscle dysmorphia (a type of body dysmorphic disorder) and anorexia or bulimia nervosa,” says Michael Kowalski, MS, a therapist at Equip. “This intersection combines the distorted view of an individual's muscle mass and the compulsive food- and exercise-related rituals created to change or reduce the obsessive thoughts about their body.”

In someone with bigorexia, this might look like intense anxiety about missing a workout, following rigid food rules, or skipping plans that interfere with their exercise routine. Even as they build muscle, they may continue to see themselves as too small.

These harmful patterns can be especially difficult to spot because many are normalized in fitness culture. Some are surprisingly common: Equip’s survey found that 76% of respondents felt anxious about missing a workout, while 59% had exercised to compensate for eating.

Although bigorexia can affect people of any gender, it’s more common among boys and men, especially teens and young adults. One reason for this may be the cultural pressure for men to look strong and muscular, according to Zoe Ross-Nash, PsyD, CEDS, a licensed clinical psychologist and certified eating disorder specialist.

Is bigorexia an eating disorder?

Bigorexia isn’t an official eating disorder diagnosis in the DSM-V. Instead, muscle dysmorphia (aka bigorexia) is classified as a form of body dysmorphic disorder, though it can overlap significantly with eating disorders and disordered eating behaviors.

“Body dysmorphia is defined as an extreme disparagement of some aspect of one’s appearance,” says Equip therapist Jalia Henry, MA, LMFT. “While people with eating disorders may have body dysmorphia as a symptom, body dysmorphia is not a type of eating disorder.”

Still, someone with bigorexia may engage in disordered eating patterns, like restricting foods, exercising to compensate for eating, bingeing, and purging. That overlap is why treatment for bigorexia often needs to address body image, eating, and exercise together.

Bigorexia vs. related terms

Bigorexia is the informal name for muscle dysmorphia, but you may come across a few other terms when reading about it. Here’s what they mean:

• Reverse anorexia: An older, informal term for muscle dysmorphia, referring to the perception of being too small or not muscular enough.
• Vigorexia: Another informal term sometimes used interchangeably with muscle dysmorphia.
• Drunkorexia: A separate term for skipping meals, exercising more, or using other behaviors to “make up” for drinking alcohol.

Male anorexia: Anorexia nervosa in boys and men, which often centers on leanness, muscularity, or performance rather than a desire to be thin, per research from the Child and Adolescent Psychiatric Clinics of North America.

What are the signs and symptoms of bigorexia?

Bigorexia can show up in how someone exercises, eats, thinks about their body, and moves through life. Not everyone will experience the same signs, but these are some to look out for.

Behavioral signs

Changes in exercise and eating habits are often among the most noticeable signs. According to Henry and Equip registered dietitian Stephanie Kile, MS, RDN, these signs may include:

• Compulsive exercise: Working out even when sick, injured, or exhausted, or having trouble taking rest days.
• Rigid food rules: Cutting out foods or food groups or feeling like you have to eat in a very specific way. An extreme focus on protein intake is also common.
• Frequent bulking and cutting: Repeatedly cycling between eating more to gain muscle and restricting food to lose body fat.
• Body checking: Frequently looking in the mirror, measuring muscles, weighing yourself, or checking how your body compares with others.
• Missing out on everyday life: Skipping social plans, school, work, or other activities to maintain workout or eating routines.
• Supplement or steroid use: Relying heavily on supplements or using steroids or other substances to change muscle size or appearance.

Physical signs

You can’t tell whether someone has bigorexia by looking at them. But overtraining, not getting enough nutrition, or using certain muscle-building substances can sometimes lead to physical changes, which Kowalski says can include:

• Frequent injuries, soreness, or pain
• Fatigue, weakness, or trouble recovering from workouts
• Signs of low energy availability or relative energy deficiency in sport (RED-S), such as changes in hormones, bone health, or immune function
• Side effects related to supplements, steroids, or other muscle-building substances

Psychological signs

Some of the biggest changes may be in how a person feels about their body or fitness routine. According to the Equip experts, these can include:

• Feeling “too small”: Continuing to believe you aren’t muscular or big enough, even as your body changes.
• Anxiety or guilt: Feeling distressed about missing workouts, eating certain foods, or not meeting fitness goals.
• Low self-esteem: Tying your confidence or self-worth closely to your body or muscularity.
• Persistent comparison: Regularly comparing your body with people at the gym, on social media, or elsewhere.
• Depression or isolation: Withdrawing from other people or activities as concerns about food, exercise, and appearance take up more time and energy.

What causes bigorexia?

There’s no single cause of bigorexia. Instead, “[it’s] a complex mix of genetic, psychological, and social factors,” says Kowalski.

He says factors that may play a role include:

• The influence of social media and fitness culture: Constant exposure to highly muscular or edited bodies can make it easy to feel like you don’t measure up.
• Pressure to look muscular: Cultural messages often link muscularity with strength, attractiveness, and masculinity. Ross-Nash notes that these expectations can shape both how people feel about their bodies and the ways they try to change them.
• Perfectionism and personality: People who are highly achievement-oriented, perfectionistic, or anxious may be more vulnerable, Kowalski says.
• Body image and past experiences: Negative body image, bullying, or teasing about weight, size, or appearance may also contribute.
• Biology: Genetics may play a role, and the hormonal and physical changes of puberty may be particularly relevant for eating disorders in young men and boys.

None of these factors alone means someone will develop bigorexia. More often, the condition develops when several different factors converge. Understanding these complex roots can help shift guilt and blame away from the person who’s struggling.

What are the health risks of bigorexia?

Bigorexia can take a toll on both physical and mental health. The risks often come from the behaviors that can accompany it, like not eating enough, exercising compulsively, or using supplements or steroids.

Physical health risks

Exercising intensely without enough food or recovery time can take a toll on your body. According to Kowalski, potential risks include:

• RED-S and malnutrition: Not getting enough energy to meet the body’s needs can affect bone health, hormones, immunity, cardiovascular health, and other systems.
• Injuries: Exercise addiction can lead to strains, overuse injuries, and pain.
• Effects of bulking and cutting: “The extreme cycle of bulking-cutting can lead to chronic health impacts such as difficulty building more muscle, type 2 diabetes, hormonal imbalances, and cardiovascular strain,” says Kowalski. “[It] can cause potentially permanent damage to an individual's metabolic rate, which makes it easier to gain and more difficult to lose weight in the future.”
• Supplement and steroid risks: Heavy supplement use can cause nutritional imbalances, while anabolic steroids can affect hormones and put the heart, liver, kidneys, and other organs at risk.

Mental health risks

Bigorexia can also make someone’s world feel increasingly centered around their body, food, and exercise. Per Kowalski, Kile, and Henry, this can lead to a cascade of mental and emotional effects, including:

• Body image distress: Feeling persistently unhappy with your body or like you’re never muscular enough.
• Preoccupation: Spending more and more time thinking about workouts, food, muscle size, or appearance.
• Anxiety and depression: Bigorexia can contribute to increased anxiety, depression, and low self-esteem.
• Social withdrawal: Turning down plans or pulling away from friends and family to make room for workouts or eating routines.

These effects can build gradually, which is another reason bigorexia isn’t always easy to recognize. But if concerns about muscle, food, or exercise are starting to affect health, relationships, or daily life, they’re worth taking seriously.

What does treatment for bigorexia look like?

If you or someone you love is struggling with bigorexia, know that support is available. Treatment usually looks at the whole picture, which is why care often involves a team of multidisciplinary providers.

Depending on your needs, Kowalski says that team may include:

• A therapist: Therapy can help you understand what’s driving compulsive behaviors, challenge distorted thoughts about your body, and find other ways to cope with distress. Cognitive behavioral therapy (CBT) can be especially helpful, according to research in Pharmaceuticals.
• A dietitian: An eating disorder-informed dietitian can help you move away from rigid food rules and make sure your body is getting enough energy and nutrition.
• A medical provider: A doctor can check for physical complications and monitor your health as you recover.

For some people, more intensive treatment may be needed to safely address any severe medical concerns. Ultimately, the right level of support will look different for everyone.

If you’re wondering whether your own or a loved one’s relationship with food, exercise, or body image may be a problem, Equip’s five-minute eating disorder screener can be a low-pressure place to start.

Free eating disorder screenerWorried you or a loved one aren’t eating enough? Taking a free screener is a great next step.

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How to support someone with bigorexia

If you’re worried about someone you love, one of the most helpful things you can do is approach them with curiosity rather than confrontation. They may not realize their relationship with food, exercise, or their body has become a problem, especially when many of the behaviors you’re concerned about are celebrated in gym culture, says Kile.

Here is what the experts recommend:

• Start with a non-judgmental conversation: Focus on how the person seems to be feeling or how their routines are affecting their life, rather than commenting on their body, weight, or appearance. And don’t be discouraged if one conversation doesn’t change things. It may take time for someone to recognize they’re struggling.
• Model flexibility yourself: Ross-Nash suggests practicing body acceptance and showing that taking rest days from movement is a normal part of caring for yourself.
• Break the stigma: “Normalize that eating concerns or body concerns are a valid issue and that there are doctors, dietitians, and therapists who are trained to assist in these difficulties,” says Henry.
• Encourage professional support: An eating disorder specialist can help assess what’s going on and what kind of care may be helpful. If you’re concerned about a child or teen, Kowalski also recommends involving their doctor to address any potential physical complications.
• Stay involved: Support doesn’t end once treatment begins. Kowalski recommends learning about bigorexia, participating in family sessions when appropriate, and simply continuing to show up. You don’t need to have all the right words—listening and reminding your loved one that you’re there goes a long way.

The bottom line

Bigorexia can be easy to miss in a culture where intense workouts and strict eating are seen as signs of dedication. But when those habits become rigid, distressing, or interfere with daily life, they’re worth taking seriously.

You don’t have to wait until things feel “serious enough” to seek help. With the right support, it’s possible to build a more flexible relationship with food, movement, and your body.

Frequently asked questions (FAQs)

How do you know if you have bigorexia?

Bigorexia may be a concern if thoughts about getting bigger or more muscular take up a lot of your time or lead to rigid behaviors around food and exercise. Feeling unable to miss workouts, frequently checking your body, or skipping other parts of life to stick to your routine can also be signs.

What do people with bigorexia believe?

Someone with bigorexia may feel like they’re too small or not muscular enough, even when others see their body differently. These thoughts can be hard to shake and may drive increasingly strict workout, eating, or body-checking routines.

What are the related conditions to muscle dysmorphia?

Muscle dysmorphia is a form of body dysmorphic disorder that can overlap with eating disorders, OCD, anxiety, depression, and substance use disorder, per a study in Behavioral Sciences.