I believe that many female friends who want to beautify themselves by injecting hyaluronic acid are very concerned about this. Although hyaluronic acid has no side effects on human body, we should pay attention to matters. Let's see if hyaluronic acid can be used during menstruation. Women can't inject hyaluronic acid during menstruation to avoid postoperative infection. It is not because hyaluronic acid is harmful to human body. In addition, the injection of hyaluronic acid should pay attention to the following points: 1, and make full preparations. You can choose a trusted medical unit or doctor for surgery, and don't blindly seek medical treatment to avoid adverse consequences. 2. Eliminate the fear of surgery, be full of determination and security, be calm and automatically cooperate with doctors to realize good hopes. 3. It is best to take a bath the day before hyaluronic acid injection. On the day of operation, wash the dirt and grease off your face with soap before going to the operating table, and try to increase the number of bacteria.