Blood Vomiting and Amnesia After a Car Accident

Car accident?

I was in a car accident recently, and I started vomiting blood after being hit.
However, the hospital examination showed nothing wrong.
Why is that? Where could this blood have come from? Could it be a nosebleed? Also, what is transient amnesia? How long does it usually last? What are the symptoms? Is it possible to only forget certain things?

ling, 20~29 year old female. Ask Date: 2001/04/15

Dr. Ke Zhengchang reply Internal Medicine

After a car accident, spitting blood can originate from various locations including the nasal cavity, throat, gastrointestinal tract, and respiratory system.
If X-rays and a thorough examination by a physician show no abnormalities, and the bleeding has stopped spontaneously, follow-up appointments can be scheduled.
Mild traumatic brain injury may cause temporary amnesia, which typically resolves within a few days, unless there is significant intracranial hemorrhage.
If any discomfort persists, please seek evaluation at a neurology clinic.

Reply Date: 2001/04/15

More Info

After a car accident, experiencing blood vomiting and temporary amnesia can be concerning and may indicate underlying injuries that need to be addressed. Let's break down the issues you've raised regarding the blood vomiting and the nature of temporary amnesia.

Blood Vomiting After a Car Accident
When someone vomits blood after a traumatic event like a car accident, it can be alarming. The source of the blood can vary; it may come from several areas, including:
1. Oral Cavity: Injuries to the mouth, gums, or teeth can lead to bleeding, which may be mistaken for vomiting blood.

2. Nasal Cavity: If there is a nasal fracture or significant trauma to the face, blood can flow down the throat from the nose, leading to blood in the vomit.

3. Gastrointestinal Tract: In more severe cases, trauma can cause bleeding in the esophagus or stomach, resulting in hematemesis (vomiting blood).

If medical examinations, including X-rays or CT scans, did not reveal any significant injuries, it is possible that the bleeding was minor and self-limiting. However, it is crucial to monitor for any recurring symptoms, as they may indicate a more serious condition that requires further evaluation.

Understanding Temporary Amnesia
Temporary amnesia, often referred to as post-traumatic amnesia (PTA), can occur after a head injury. This condition is characterized by a loss of memory surrounding the event of the trauma and sometimes for a period before the injury. Here are some key points regarding temporary amnesia:
1. Duration: The duration of temporary amnesia can vary widely. In many cases, individuals may recover their memory within hours to days. However, in some instances, it can last longer, depending on the severity of the brain injury.

2. Symptoms: Symptoms of temporary amnesia can include confusion, difficulty recalling recent events, and challenges in forming new memories. Individuals may remember who they are and recognize familiar faces but struggle with specific details about recent occurrences.

3. Recovery: Most people recover from temporary amnesia without long-term effects, especially if the injury was mild. However, if there are signs of persistent memory issues or cognitive difficulties, it is essential to seek further evaluation from a healthcare professional, preferably a neurologist.

4. Specific Memory Loss: It is indeed possible for someone to forget specific events while retaining other memories. This selective memory loss is common in cases of trauma and can be a protective mechanism of the brain.

Conclusion
In summary, if you or someone you know is experiencing blood vomiting and temporary amnesia following a car accident, it is crucial to seek medical attention. While minor injuries may resolve on their own, persistent or worsening symptoms warrant further investigation. Always err on the side of caution when it comes to head injuries and associated symptoms, as timely intervention can significantly impact recovery outcomes. If symptoms persist or new symptoms arise, follow up with a healthcare provider to ensure comprehensive care and monitoring.

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