I have sickle cell sc disease - is it ok to to do surgery. Preferably liposuction and a breast reduction

The answer depends on what you have in mind, how long it is, how invasive it is, and how severe your SCA is.  First, visit with your hematologist to get permission, then have a plastic surgery consultation.  Be sure to discuss your goals and concerns with your board certified plastic surgeon and consider the pros and the cons. Be certain your surgeon is properly certified.  I've attached a link where you can start your search. 

Thank you  for your awesome question! Your bio is very helpful, however without the benefit of knowing your full health history and an in person exam it's impossible to say for certain. 
  I would recommend you have an in person consultation with a plastic surgeon with these credentials: *Board Certified by the American Board of Plastic Surgery -- The gold star symbol*A member of the ASPS (American Society of Plastic Surgeons) -- The circle symbol*A member of the ASAPS (American Society of Aesthetic Plastic Surgeons) -- the Queen Nefertitti symbol with a Triangle  *On faculty at local plastic surgery teaching program -- in our office we are affiliated with both Duke and UNC schools of plastic surgery.    Feel free to contact our office, it would be our pleasure to answer your questions in person. I hope this is helpful and wish you all the best in your journey.  My sincere best, Brian S. Coan, MD, FACS 

You should see your hematologist and have some testing done. Sometimes DDAVP is given before surgery. Sometimes your doctor will do a test to see your response to the medication. It is better to have all in place before the surgery. Then it is safe to perform.