Accidentally Swallowed Lobster Shell: What to Watch For? - Otolaryngology

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Ingestion of lobster shell?


I accidentally ingested a small piece of lobster shell during lunch today.
I feel fine at the moment, but what should I watch out for?

Mr. Chen, 40~49 year old female. Ask Date: 2022/11/14

Dr. Ji Zhaoyun reply Otolaryngology


If there is a suspicion of foreign body ingestion, it is recommended to consult an otolaryngologist for examination.

Reply Date: 2022/11/14

More Info


If you accidentally swallowed a small piece of lobster shell, it's important to monitor your condition closely, but there is generally no need for immediate panic. Here are some key points to consider and watch for:
1. Symptoms to Monitor: After swallowing a foreign object like a lobster shell, you should be vigilant for any unusual symptoms. These may include:
- Abdominal Pain: Watch for any sharp or persistent pain in your abdomen.

- Nausea or Vomiting: If you feel nauseous or start vomiting, it could indicate that the shell is causing irritation.

- Difficulty Swallowing: If you experience pain or difficulty when swallowing, this could be a sign that the shell is lodged somewhere in your esophagus or gastrointestinal tract.

- Changes in Bowel Movements: Monitor for constipation or blood in your stool, which could indicate that the shell is causing an obstruction or injury.

2. Size and Shape of the Shell: The size and shape of the swallowed shell matter. Small, smooth pieces are less likely to cause harm compared to larger or jagged pieces, which could potentially cause cuts or blockages in the digestive tract.

3. Time Frame: If you do not experience any symptoms within a few hours after swallowing the shell, it is likely that it will pass through your digestive system without issue. However, if symptoms develop, it is important to seek medical attention.

4. When to Seek Medical Attention: If you experience any of the following, you should seek medical care immediately:
- Severe abdominal pain or cramping
- Persistent vomiting or inability to keep food down
- Blood in your stool or vomit
- Difficulty breathing or swallowing
- Any other severe or unusual symptoms
5. Medical Evaluation: If you are concerned about the swallowed shell, or if you develop any symptoms, a healthcare provider may recommend imaging studies, such as an X-ray or CT scan, to determine the location of the shell and assess for any potential complications.

6. Prevention for the Future: To avoid similar incidents in the future, be cautious while eating shellfish. Chew food thoroughly and be aware of any hard or sharp pieces that may be present.

In summary, while swallowing a small piece of lobster shell can be concerning, many people do so without experiencing serious complications. Keep an eye on your symptoms, and if anything feels off or if you have any doubts, do not hesitate to reach out to a healthcare professional for advice. Your health and peace of mind are paramount, and it's always better to err on the side of caution.

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