German phrase
Könnte das von ~ kommen?
Meaning
Could that be caused by ___?
When to use it
This checks a possible cause. It gently asks whether something caused a symptom.
Example dialogue
Könnte das von meiner Allergie kommen?
Could that be caused by my allergy?
Ja, das wäre möglich. Hast du schon Antihistaminika genommen?
Yes, that would be possible. Have you taken antihistamines yet?