I have low hemoglobin. Is it possible to get an iron infusion before a BBL surgery this month?

Great question!  You definitely will need your hemoglobin to be within the normal range before proceeding.  Depending on the reason for the low hemoglobin, you can take iron supplements and eat foods high in iron.  Every surgeon has his/her own protocol to increase iron so I would speak with them to see what they are comfortable with.Best of luck and hope this information helps!
- Dr. Roger Tsai  @DrRogerTsai
Board Certified Plastic Surgeon

Dear Missmary114,
you should be healthy and your lab results should be within normal limits prior to elective procedures in order to avoid complications. Every plastic surgeon has his own preoperative protocol which he recommends to his patients. I would suggest you to discuss this with your plastic surgeon.
Daniel Barrett, MD
Certified, American Board of Plastic Surgery
Member, American Society of Plastic Surgery
Member, American Society of Aesthetic Plastic Surgery

Have your labs repeated a few days before your scheduled surgery.  If they remain low, ask your PS if he/she recommends that you postpone your BBL until they reach a satisfactory level. Besides eating dark leafy veggies, liver, lentils, almonds, dried apricots, beets, and other high iron foods, your PS or internist could prescribe iron pills and Vitamin C based upon the cause of the anemia.Kenneth Hughes, MD, ABPS Board Certified Plastic SurgeonLos Angeles, CA

Yes, it is an option to get an iron infusion before surgery. It may take more than one to get you to your goal. 

I advice you to postpone your surgery and get a better hemoglobin level 
You can help by taking iron tablets after an advice form your Doctor