There are a total of three types of cervical cancer vaccines on the market: the first is the bivalent vaccine, which costs about $600 per shot; the second is the quadrivalent vaccine, which costs about $800 per shot; and the third is the nine-valent vaccine, which costs about $1,300 per shot. So, patients want to get different vaccines at different price points. Generally, all three vaccines require three injections, but the timing of the injections is slightly different. For the cervical cancer bivalent vaccine, the usual timing of the injection is: the second and third doses are given in the first and sixth months after the first dose. For cervical cancer quadrivalent vaccine and nine-valent vaccine, the second and third doses are usually given in the second and sixth months after the first dose, respectively. Some individual patients may experience anaphylactic shock during the cervical cancer vaccination. Therefore, after the cervical vaccination, patients should stay at the injection unit for half an hour for observation before leaving.