Classic Rope Mark: pink or red indentation where rope tightly pressed (usually at crest of ankle, side of wrist etc.) If in a line, it looks a bit like a snake print.
Knot Spot: Pink or red flattened spot of skin where a knot pressed (usually from lying on it).
Rope marks will fade in five minutes to several hours, depending on the bondage.
Microbruise: broken red blood vessels just below surface.
Pinch bruise: a microbruise where the rope pulls the skin into a pinch and breaks a small red spot of blood vessels.
Tiger stripes: a microbruise in a line where the rope was (usually from weight support or suspension).
Layered bruise: a bruise exacerbated by bondage. The original bruise may be non-bondage-related. The new area will be red where the previously-broken blood vessels have leaked new blood.
Tape Gooey: stripe of adhesive or rubber cement left behind by duct tape. Can be removed with baby oil.
Tape Fuzzy: if the gooey is left on, it will attract lint and eventually become a fuzzy gray stripe.
Abrasion: Rope Burn
Light rope burn: pink
Captives also sometimes get rug burn from rolling around on the carpet while tied.
"How do you avoid rope and gag marks after a session is done? I can't go to work with red lines on my face, wrists and ankles."
If I have to be somewhere after my session, we use torn bedsheets for the bondage. Even when tied tightly, they usually don't leave marks... and I use the white medical cloth tape for the tape-gag; it peels off without removing any skin.