Concerns About Insects Entering the Body: What You Need to Know - Internal Medicine

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Mosquito issues?


Hello, doctor.
While I was sitting at home drawing and chatting, I suddenly saw a fruit fly or some similar insect flying around in front of me, and then it disappeared.
I'm worried that it might have gone into my nose or throat, which could cause it to get stuck or enter my trachea, especially since I was talking and laughing with my mouth slightly open at that time.
I feel like my throat is a bit scratchy, and I'm not sure if it's just psychological or if the insect really got in there.
Although I currently don't have any other discomfort, drinking water has helped alleviate the feeling a bit.
I'm concerned about whether I should see a doctor or if I should just keep drinking water, as my family suggested.
My brother said that insects aren't that foolish.
I hope the doctor can explain what symptoms might indicate that an insect has entered.
Thank you.

Gina, 10~19 year old female. Ask Date: 2020/10/26

Dr. Hong Yuanbin reply Internal Medicine


Hello, generally speaking, fruit flies, like other insects, tend to avoid flying into mouths, and they usually do not carry pathogens that are harmful to humans, so there is no need to worry.
Thank you for your question.

Reply Date: 2020/10/26

More Info


It's understandable to feel concerned after experiencing the sensation of an insect flying near your mouth, especially if you were talking or laughing at the time. The fear of an insect entering the body, particularly through the nose or throat, is not uncommon and can lead to anxiety about potential health risks. Let’s break down the situation and provide some reassurance and guidance.

Firstly, it’s important to note that while it is theoretically possible for a small insect to enter the mouth or nose, the likelihood of this happening and causing harm is quite low. Insects, including fruit flies, are generally not inclined to enter human bodies. They are more attracted to food sources and waste rather than seeking to enter a person’s mouth or nose.
If an insect were to accidentally enter the mouth, the body has several protective mechanisms in place. The gag reflex is one such mechanism that helps prevent foreign objects from entering the throat and airway. If you did accidentally swallow an insect, it would likely be harmless, as the digestive system can handle small organic matter without issue.
Regarding the sensation you described in your throat, it could be attributed to a few factors:
1. Psychological Response: Anxiety and worry about the insect can lead to heightened awareness of bodily sensations. This can create a feeling of tightness or discomfort in the throat, often referred to as "globus sensation," which is a common symptom of anxiety.

2. Irritation: If you were talking or laughing when the insect was nearby, it’s possible that the throat was momentarily irritated, leading to a sensation of something being stuck. This can happen with any sudden movement or change in airflow.

3. Dryness: Sometimes, when we are anxious, we may forget to breathe normally, leading to dry mouth and throat. Drinking water, as you mentioned, can help alleviate this sensation.

4. Allergic Reaction: In rare cases, if someone has a specific allergy to a type of insect, there could be a mild allergic reaction, but this would typically present with other symptoms such as itching, swelling, or difficulty breathing.

Given that you currently do not have any other symptoms, such as difficulty breathing, persistent pain, or swelling, it is likely that you are experiencing a temporary sensation that will resolve on its own. However, if you continue to feel discomfort or if new symptoms arise, it would be wise to consult a healthcare professional for further evaluation.

In the meantime, here are some suggestions to help ease your concerns:
- Stay Hydrated: Continue to drink water, as it can help soothe your throat and alleviate any irritation.

- Relaxation Techniques: Practice deep breathing or mindfulness exercises to help reduce anxiety and focus on calming your mind.

- Monitor Symptoms: Keep an eye on any changes in your condition. If you notice persistent discomfort or new symptoms, seek medical advice.

In conclusion, while the sensation of an insect entering your body can be alarming, it is unlikely to pose a significant health risk. Trust your instincts, and if you feel the need for reassurance, don’t hesitate to reach out to a healthcare provider. They can provide you with the necessary guidance and support.

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