Is it dangerous to hit hyaluronic acid with blunt needle

Hyaluronic acid is injected with a blunt needle. Now, the injection of hyaluronic acid is mostly for plasticity, and the injection level is deeper and the area is larger. Traditional sharp needle injections are highly demanding and can damage facial nerves, causing complications and requiring more than one injection, adding to the risk. With a blunt needle, however, damage to facial nerves can be avoided. Even for a full injection, it only takes two injection sites. So it's safer to use it by injection. Modern hospitals basically use blunt needles.
First of all, the sharp tip of hyaluronic acid needle is hard and has a strong needling feeling, and there will be slight pain in the treatment. Moreover, when the injection is carried out in layers for a large area, the pain will be more intense. However, the blunt injection of hyaluronic acid needle has a small sharp feeling, which is not easy to damage blood vessels, less bleeding, and the injection is safer.
Secondly, the needle of hyaluronic acid sharp needle is more sharp. If the doctor is not familiar with the facial anatomy, the use of sharp needle is very easy to inject hyaluronic acid into the blood vessel, resulting in vascular embolism and tissue necrosis. Blunt needle surface is completely polished, the head is blunt, into the tissue can achieve minimal trauma, can completely avoid blood vessels, so that the face swelling, bruising chance is much less.