I want fat transfer to the forehead to have a rounder appearing forehead, mine is flat and masculine. What are the risks?

As with any procedure, fat grafting is a surgical procedure, and it does have some risks.  These can be minimized with proper technique and expertise.  In the forehead, there is the inherent risk of not having all or any of the fat actually take.  Infections are pretty rare.  This are does have the added risk of blindness, because vessels in this area connect up with vessels in the eye.  One way I've been working to decrease this risk is with what is called UIGFAT (Ultrasound-Image Guided Fat Augmentation Technique_ where a surgeon uses ultrasound (Like what is used to see fetuses during pregnancy) and special needle cannulas that light up better under ultrasound.  Seeking a plastic surgeon who has lots of experience in the area of fat transfer in the face is your best bet!

Bleeding, infection, soreness and swelling are possible. The most significant risk is that your face may simply reabsorb all or most of the transferred fat. The chances of this happening can't be predicted for a given individual but is likely related of the mobility of the surrounding tissue. In my practice I minimize this risk by using Botox to temporarily relax the forehead muscles so that their movement doesn't interfere with the fat establishing a blood supply. Rare risks and complications include allergic reactions, discoloration, overcorrection, scarring, and embolism caused by a fat injected into a blood vessel (which can cause blindness). Proper technique and specialized injection cannulas that minimize the likelihood of entering a blood vessel are used to minimize this last risk. You can minimize all of these risks by finding an injector who has experience in fat transfer.Best wishes!  Harry V. Wright MD