Got filler in glabella region, now worried about necrosis. What are the chances of this happening?

Vascular occlusion is possible due to a filler injection, and it can lead to necrosis.  This is a very rare complication though.  If vascular occlusion occurs from a filler injection, this normally happens at the time of injection and not hours later.  If everything looks fine 6 hours after the filler injection to your glabella, you should not have any problem.    

Hi,There are many early signs of vascular compromise and necrosis is the end result of such events. The earliest signs include pain (much more significant than a typical injection), immediate blanching of the skin near the injection sight and mottling of the skin. Later signs can include a duskiness to the skin, loss of sensation in the area that was injected (there is lidocaine in fillers so this would be several hours after treatment) and late signs are dead, necrotic skin. There is no need to panic, if you have any concerns you can follow up with your provider.Best,

Necrosis is usually picked up in the first 3 days of procedure being done. The signs include
1.Blanching of skin
2.Pain
3.Mottling of skin/Fish net stocking appearance
4.pustules
5.Black discoloration of skin
Best to see doctor if you are concerned