If you are learning how to defend yourself against a knife attack, you must keep two things in mind. The first thing you must keep in mind is the danger of dealing with a bladed weapon. Bladed weapons such as knifes are extremely dangerous because they can cause severe damage to your body with just one glancing blow.
Because of this extreme danger, you should be extra cautious if you ever find yourself in a knife fight. If you have your own knife, the best thing you can do is use it to keep your attacker away, and try to find a quick exit. If you do not have your own knife, see if you can grab a chair or another object that can be used as a weapon to keep your attacker at bay. If you can’t find anything else, see if you can find an exit and run away safely.