Is this a septum hematoma after rhinoplasty? (Photo)

    Call your plastic surgeon's office to evaluate this.  If you have a septal hemartoma, you need to have the area drained as soon as possible.  Hopefully you already did this.

Thank you for the question! It's much too early to worry about your results considering that you had your surgery done 10 days ago.  At this point you are most likely experiencing post-op swelling, which is preventing you from seeing final results. Swelling may take 6 to 12 months to completely resolve. In the meantime, you may see contour irregularities. Breathing difficulties should subside withing one month. Give it more time for your nose to "settle." 
 An in-person exam with a board-certified plastic surgeon would be the best way to assess your needs and obtain expert medical advice. Best of luck!

It is difficult to tell you if you have a septal hematoma from the photos, but if you have one it is an emergency and should be evaluated.

A septal hematoma is an emergency. It is very important to drain the collection of blood and make sure the underlying cartilage is viable and no infection develops. If you suspect something like this it is best  to go the the nearest emergency department immediately for consultation.

 Is it very difficult to see the septum from the photos provided but a Septal Hematoma is a serious issue that can cause injury and dissolution of the supporting nasal septal cartilage.  For that reason you should have the nose examined by your Rhinoplasty Surgeon ASAP.