Razors primarily cut when you move the blade ever so slightly sideways, as in while the blade is not otherwise moving in the correct direction... The most common cause is from touching the skin with the blade NOT moving, or allowing the blade to come to a stop while still touching the skin. Tiny, involuntary movements of the hand (shaking, twitching or trembling) will allow the blade to cut your skin. Note, these movements are not normally visible to the hands owner.... just the heart beating causes small movements of the hand.

If you have your razor moving in the correct direction as it touches down on your skin, and it also lifts away from your skin before it stops moving in the correct direction, it will not cut. You could get a "weeper", usually a small pimple or such that gets knocked off during shaving (it happens to all of us), but cuts should not happen. I cannot imagine the amount of force required to cut your skin if the blade is moving in the correct direction. Stretching the skin helps many times when shaving, but I get a closer shave when I "slack skin" shave some parts of my face. If I push to hard, the skin will bunch up in front of the blade, but it does not get cut, unless I stop moving the blade while it is still in contact with my skin.

The best way to describe what I mean is to imagine combing your hair. The comb is moving in the correct direction before you touch your hair, and it is still moving when it you finish the combing stroke and pull the comb away. You go back and repeat the motion so it looks like a scooping movement. Placing a razor on your face without it moving, then moving it to shave a section and stopping again, before removing the blade from your face WILL result in a painful cut, sooner or later.

Otherwise, keep a recent photo of yourself handy.... It helps the surgeon figure out what goes where.


Regards

Christian