The Difference Between A Blunt Needle And A Sharp Needle

The difference between a blunt needle and a sharp needle

Sharp needles are sharper, which makes it easier to enter the skin and soft tissues, with less resistance and less damage to the tissues. The recovery is quicker, and it is generally believed that the pinhole has 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 a needle that pierces the blood vessel and cause embolism, blood supply disorder causes skin necrosis, or even blindness, and enters the cerebral blood vessel to cause cerebral infarction. It is difficult for a blunt needle to break through the skin. It is often necessary to open the skin with a sharp needle, and then inject with a blunt needle. The risk of puncturing the blood vessel will be significantly lower. Combined with some injection techniques, the embolization complications will be very low. However, blunt needles have larger skin damage than sharp needles, and the recovery time is longer, generally considered to be at least 48 hours.

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