Is it better to use a blunt needle or a sharp needle for hyaluronic acid injection?

The main difference between a blunt needle and a sharp needle is the position of the needle. The needle of a blunt needle is round, and the needle of a sharp needle is beveled. A blunt needle will not directly pierce the skin, and needs to be opened, while a sharp needle can directly pierce the skin.

When injecting into the face and other parts, the blunt needle will not damage the blood vessels, so it will not penetrate the blood vessels during the injection process, resulting in the occurrence of vascular embolism. Sharp needles are sharp at the tip, so this is possible. Relatively rich blood vessels need to be injected with a blunt needle. If the blood vessels are relatively small, a sharp needle needs to be used for injection, which can achieve very safe protection. Sharp needles are sharper and easier to enter the skin and soft tissue, with less resistance and less damage to the tissue. The recovery is fast, and it is generally believed that the pinhole has been closed after 24 hours. But its disadvantage is that it is easy to puncture or puncture the blood vessel. When injecting hyaluronic acid or fat, etc., it is easy to inject into the blood vessel through the needle that penetrates the blood vessel, causing embolism. It is difficult to penetrate the skin with a blunt needle, and a sharp needle is often required to open the skin, and then the blunt needle is injected, and the risk of puncturing the blood vessel is significantly lower. Combined with some injection techniques, the complications of embolism will be very low. However, blunt acupuncture has more damage to the skin than sharp acupuncture, and the recovery time is longer, generally considered to be at least 48 hours.

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