Making yourself throw up is a deliberate act with real medical consequences, and it is rarely a good idea. The body has a built-in defense system for vomiting when something harmful enters the stomach, but triggering it on purpose bypasses those safeguards. This guide explains what happens when you force vomiting, why doctors generally advise against it, and what safer options exist for the situations people most often worry about.
What Happens When You Make Yourself Throw Up?
Vomiting is a reflex controlled by the brain, not the stomach. A region in the brainstem called the area postrema detects toxins in the blood and sends signals that trigger the vomiting response. When you force vomiting by sticking a finger down your throat or drinking something irritating, you are activating that reflex manually rather than responding to a real threat.
The stomach contents that come up are mixed with stomach acid. That acid is strong enough to damage the lining of the esophagus, which does not have the same protective mucus layer as the stomach. Repeated exposure can cause inflammation of the esophagus, a condition doctors call esophagitis. Over time, this can lead to bleeding, narrowing of the esophagus, and in serious cases, a tear in the esophageal lining known as Mallory-Weiss syndrome.
There is also the risk of aspiration. If vomit enters the airway instead of exiting through the mouth, it can cause choking or a lung infection. This risk is higher when someone is lying down or has been drinking alcohol.
Why Do People Try to Make Themselves Throw Up?
The reasons vary, and understanding them matters because the solution is different for each situation.
- Suspected food poisoning or illness: Some people believe forcing vomiting will speed up recovery or remove the harmful substance.
- Eating disorders: Self-induced vomiting is a hallmark behavior of bulimia nervosa and some cases of anorexia nervosa. This is a serious mental health condition that requires professional treatment.
- Alcohol poisoning: Friends or family may try to make someone throw up after heavy drinking, thinking it will help.
- Accidental swallowing of a harmful substance: People sometimes panic and try to bring it back up.
- Feeling uncomfortably full: After a large meal, some people consider it as a way to relieve pressure.
Each of these situations has a better response than self-induced vomiting. In some cases, forcing vomiting can make things worse.
Is It Ever Safe to Make Yourself Throw Up?
No clinical guidelines recommend self-induced vomiting as a safe or appropriate response to any common situation. Poison control centers and emergency departments generally advise against it. The reason is that the risks — esophageal damage, aspiration, and electrolyte imbalance — often outweigh any perceived benefit.
There is one narrow exception in medical practice: certain poisonings are sometimes treated with a procedure called gastric lavage, where a doctor inserts a tube to empty the stomach. This is done in a hospital under controlled conditions, not at home. Even then, it is used less often now than in the past because the evidence for its benefit is limited in many cases.
For alcohol poisoning, making someone vomit does not remove enough alcohol from the bloodstream to change the outcome. Alcohol is absorbed quickly, and by the time someone is showing signs of severe intoxication, most of it is already in the blood. The correct response is to call 911.
What Are the Risks of Forcing Yourself to Vomit?
The risks range from uncomfortable to life-threatening, and they increase with frequency.
- Esophageal damage: Stomach acid erodes the esophageal lining, causing pain, bleeding, and scarring.
- Tooth enamel erosion: Acid wears away tooth enamel, leading to cavities and sensitivity. Dentists often see this pattern in people with bulimia.
- Electrolyte imbalance: Vomiting removes potassium and sodium. Low potassium can cause heart rhythm problems, muscle weakness, and in severe cases, cardiac arrest.
- Dehydration: Loss of fluids and electrolytes can lead to dizziness, kidney problems, and confusion.
- Aspiration pneumonia: Vomit in the lungs can cause a serious infection.
- Mallory-Weiss tear: A tear at the junction of the esophagus and stomach can cause significant bleeding.
- Swelling of the salivary glands: Repeated vomiting can cause painless swelling in the cheeks and jaw.
- Calluses on the knuckles: Known as Russell’s sign, these are caused by teeth scraping the skin during self-induced vomiting.
The frequency and duration of the behavior matter. Someone who induces vomiting once after a bad meal is at much lower risk than someone who does it daily for months or years. But even a single episode carries some risk, especially if alcohol or sedatives are involved.
What Should You Do Instead of Making Yourself Throw Up?
The right action depends on the situation, but in almost every case, it does not involve forcing vomiting.
If you think you swallowed something poisonous: Call Poison Control at 1-800-222-1222 immediately. Do not try to make yourself vomit unless a medical professional tells you to. Some substances cause more damage coming back up than they do going down. For example, caustic substances like drain cleaner can burn the esophagus twice if vomited.
If you drank too much alcohol: Call 911 if the person is confused, cannot be woken, is vomiting while unconscious, has slow or irregular breathing, or has cold or clammy skin. Do not leave them alone. Place them on their side to prevent choking if they vomit. Do not give them coffee or try to make them walk it off.
If you feel sick from food: Let your body do what it needs to do. If you feel nauseated, rest and sip clear fluids. If you vomit naturally, that is the body’s reflex working. Do not force it. If vomiting lasts more than a day or two, or if you cannot keep fluids down, see a doctor.
If you feel uncomfortably full: This feeling usually passes. Walking, drinking water, or simply waiting can help. If you feel full after small meals regularly, talk to a doctor. It can be a sign of a digestive condition like gastroparesis.
If you are struggling with urges to purge: This is a sign of an eating disorder, and it is treatable. The National Eating Disorders Association helpline and local mental health services can connect you with support. Cognitive behavioral therapy and other approaches have evidence for helping people reduce and stop purging behaviors.
When Should You Seek Emergency Care?
Some symptoms after vomiting or after trying to vomit require immediate medical attention.
- Vomiting blood or material that looks like coffee grounds
- Severe chest or abdominal pain
- Difficulty breathing or choking
- Confusion, fainting, or extreme weakness
- Heart palpitations or irregular heartbeat
- Signs of dehydration such as dark urine, no urination for eight hours, or dizziness when standing
These signs can indicate bleeding, heart rhythm problems, or other serious complications. Do not wait to see if they improve on their own.
What About People Who Vomit Regularly on Purpose?
If you or someone you know induces vomiting regularly, the health consequences build over time. Electrolyte imbalances can become chronic. Teeth can be permanently damaged. The esophagus can develop strictures that make swallowing difficult.
Bulimia nervosa is a diagnosable condition with specific criteria. It affects people of all body sizes and genders. Treatment usually involves therapy, nutritional counseling, and sometimes medication. Recovery is possible, and earlier treatment leads to better outcomes.
It is also worth knowing that purging does not prevent calorie absorption as effectively as many people believe. By the time someone vomits, a significant portion of calories has already been absorbed. This is one of the reasons purging does not reliably lead to weight loss, which is often the goal driving the behavior.
Frequently Asked Questions
Can making yourself throw up help with food poisoning?
No. By the time you feel sick, your body is already responding. Forcing vomiting can cause more harm than good and does not speed recovery.
What should I do if someone is passed out drunk and might vomit?
Place them on their side and call 911. Do not try to make them vomit or leave them unattended.
Does throwing up after eating prevent weight gain?
No. A significant portion of calories is absorbed before vomiting occurs, and the behavior carries serious health risks.
How do I stop making myself throw up?
Talk to a doctor or mental health professional. Therapy and support programs have evidence for helping people stop purging behaviors.

