Looks like guttation,give it a taste,should be sweet as it's mostly carbs and terps.Have never seen seen a plant give red sap before,what strain is it?
I can't see it great but it looks like scale to me.. If it is like a physical bump on the leaf it's probably scale and I would start work on it now if so good luck headband 707
When you snap a leaf stem in half does it bleed ?(is it red?) There was another member on here like a week ago that had plants that bleed red when cut. Maybe yours shares some of the same genetics?
This is sign express by sativas generally when u top them or fim them. Looks like the plant is bleeding somehow... It's the first I'm seeing that way though, don't know if it's the same phenomena ...