If you accidentally eat a few fly eggs on food, you will usually be fine, but there is a small risk of food poisoning or, very rarely, a worm‑like infection in the gut called intestinal myiasis.

Quick Scoop

Most likely outcome

For a healthy person who swallowed a small amount:

  • Stomach acid and digestion often destroy the eggs or larvae, and nothing noticeable happens.
  • You might just feel grossed out , which alone can cause a bit of nausea or loss of appetite.

When it can be a problem

Trouble comes mainly from germs on the eggs , not the eggs themselves:

  • Flies can carry bacteria like those that cause common food poisoning, leading to:
    • Nausea and vomiting
* Diarrhea and stomach cramps

* Fever or feeling generally unwell in more serious cases
  • If the food was already spoiled or dirty, the risk of getting sick is higher.

Rare but serious: intestinal myiasis

In unusual cases, especially if you swallow lots of eggs or larvae from heavily infested, spoiled food , some can survive and hatch inside the gut:

  • This is called intestinal myiasis.
  • Symptoms can include:
    • Persistent abdominal pain
* Ongoing diarrhea or vomiting

* Sometimes visible larvae in stool (very rare and alarming but treatable)
  • It can damage tissues if larvae attach and feed, so it needs medical treatment.

Allergic reactions

Some people may react to fly eggs or larvae:

  • Possible symptoms:
    • Itching, hives, or skin rash
* Wheezing, breathing trouble, or swelling (face, lips, tongue) in severe reactions
  • This is an emergency and needs immediate care.

What to do if you think you ate fly eggs

1. If you feel fine

  • Drink water and carry on as normal.
  • Watch yourself for 24–48 hours for:
    • Nausea or vomiting
    • Diarrhea
    • Stomach cramps or fever

2. See a doctor urgently if you:

  • Have severe or worsening stomach pain
  • Vomit or have diarrhea that doesn’t settle after a day or two, or if you can’t keep fluids down
  • Notice blood in vomit or stool
  • Have trouble breathing, swelling, or hives (possible allergy)
  • See anything that looks like small worms or maggots in stool or vomit (tell the doctor exactly what happened).

How to avoid this in the first place

  • Cover food, especially outdoors or in warm kitchens, so flies can’t land on it.
  • Throw away food that:
    • Has visible eggs or larvae
    • Smells off, looks rotten, or has been sitting out uncovered for a long time
  • Wash fruits and vegetables thoroughly; cut away any soft, rotten, or punctured parts where flies might have laid eggs.
  • Keep trash sealed and surfaces clean to reduce flies in the home.

Forum and “real life” vibes

Online discussions where people admit they accidentally ate fruit with fly eggs usually end with:

  • Most posters saying they felt fine or only briefly nauseated because they were disgusted.
  • A reminder that small amounts of insect parts or eggs are surprisingly common in everyday food and usually harmless.

Bottom line: A one‑off, small accidental bite with fly eggs is unlikely to seriously harm a healthy person, but there is a risk of food poisoning and, in rare cases, intestinal myiasis, especially from heavily contaminated or spoiled food. If you develop strong or persistent symptoms, you should get medical help and mention that you may have eaten fly eggs.

Information gathered from public forums or data available on the internet and portrayed here.