Does blunt needle injection of hyaluronic acid cause swelling?

After injecting hyaluronic acid with a blunt needle, there may be swelling at the injection site.

After blunt needle injection of hyaluronic acid, bruising at the injection site can be applied with ice. If swelling is unbearable, oral pain relievers can be administered. Also need to pay attention to fasting spicy and stimulating food, pay attention to rest. When injecting hyaluronic acid with a blunt needle, the injection level control is relatively simple; it has no sharp edges and no blades, and has strong elasticity. Cross-filling, fewer needle holes, easier to spread evenly; needles can be inserted in more concealed parts to achieve a farther injection position. However, when injecting hyaluronic acid with a blunt needle, it cannot be injected into the skin; the blunt needle forcibly breaks through to form a tear in the surrounding tissue, and the pain is strong. The inferior quality blunt needle is rough around the needle hole, and the blood vessel may be scratched during puncture; the inner diameter is much thicker than that of the sharp needle, and the bolus injection is smoother. Under the same operating pressure, the injection volume per unit time is the same as that of the sharp needle. Several times, if the operation is improper, it is easy to inject too much in a certain part; the outer diameter is mostly thicker than the sharp needle, the needle point needs to use an additional fine sharp needle to inject a small amount of anesthesia, and a thick sharp needle should be used to open the hole, otherwise the beauty seeker will feel pain Unbearable, the operation steps are more complicated than sharp needles.

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