ZocdocAnswersMy boyfriend's left forearm has been numb all day and left side tongue is swollen. What could it be?

Question

My boyfriend's left forearm has been numb all day and left side tongue is swollen. What could it be?

Boyfriend said since he woke up his left forearm been numb and his left side of tongue is swollen what could it be

Answer

Thanks for your question. This is an interesting set of symptoms that does not have an obvious explanation without more information. While it makes sense to think of these as being due to a related or the similar cause, it is also possible that these are 2 unique phenomena that need to be evaluated and treated separately. Speaking with your doctor will help to understand better what is the cause of his problem. First, swelling in the tongue is often due to allergic reactions. Angioedema can strike at just one part of the body, or it can involve different subsites of the head and neck. If the swelling is persistent or growing, it is important to speak with your doctor about this question sooner rather than later as the swelling can grow and make it difficult to swallow or even breathe. Numbness along the left forearm can often have to do with problems or pinching of a nerve, and this can be something that resolves over time. If it persists, it is also something that should be discussed with the doctor to make sure that there is nothing more serious. Please speak with your doctor about this question.

This answer is for general informational purposes only and is not a substitute for professional medical advice.

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