While filler injections, if done correctly, are very safe procedures, there however a very small risk of complications related to them. Most common, although still infrequent, complications of the filler injections are infection and filler irregularity/ migration. The infection usually resolves with antibiotic treatment, if indicated. Small grannulomas (nodules) may resolve on there own, be treated with steroid injections, or , if noticeable and large, may be excised via small skin incision. Probably the most serious complication is tissue necrosis which results from occlusion of the small blood vessels feeding the area by the filler. This is extremely rare, however if occurs it usually leaves a patient with permanent scarring/ deformity. Various fillers are better used for various areas, for example Juvederm/ Restylane can be used for lip augmentation whereas Radiesse is not indicated there. Meanwhile Radiesse is a great option for midface, nasolabial folds, temples, jaw line, etc. Choosing a right doctor is more important than choosing a filler. And like I said, even though there is a small risk of complications related to fillers, it is a very safe procedure. Car accidents also happen, however we still drive cars, right?