The cactus thorns can not be taken out with saline to soak the wound and then take out the thorns, but the time will take longer, you can also use a magnifying glass and tweezers together to take out the thorns, tweezers need to do a good job of disinfection in advance with alcohol, along with the thorns to remove, you can also use alcohol to sterilize the needle, pick open the local skin and then take out the thorns. If the thorns are not removed for a long time, it is likely that the wound will become septic or infected, and if the infection is serious, there will be local tissue ulceration, etc. It is recommended that if you cannot remove the thorns yourself at home, you can go to the surgery and let the doctor remove them with professional tools.