Blunt force trauma - the left breast became significantly softer than the right. Any advice?

Hi & thanks for your question!
I would schedule an appointment with your surgeon for an examination, just to make sure everything is okay. Best wishes!

Hello there,
Minor trauma like this can cause swelling which might feel like soft. But better not to ignore because there is possiblity of implant rupture. The only way to know is by imaging process.
Please visit your treating plastic surgeon and get examined. If there is suspicion the surgeon will guide you for imaging investigations.
Hope this helps. Thank you for your query here.

Dear Resourceful411948,
it is hard to tell for sure without an examination. If you are concerned, I would suggest you consult your plastic surgeon. Only after a thorough examination, you will get more information and recommendations.
Daniel Barrett, MD
Certified, American Board of Plastic Surgery
Member, American Society of Plastic Surgery
Member, American Society of Aesthetic Plastic Surgery

Your capsule may have been torn and gave the implant more room to move which would make it softer. However, you might get an ultrasound just to check the implant.