When your cancer markers are higher than normal it usually indicates cancer in your body or blood and can usually be cured when caught soon enough.
The normal range of cancer markers is less than 30 units/mL. CA 27.29 and anything higher than that then it could indicate cancer.
The cancer markers are substances found in body tissue, blood and even urine so when those cancer markers or tumor markers get higher than normal then it's usually not a good sign.
It could indicate that you're developing cancer or already have some cancer and need treated.
If treated soon enough then cancer can almost always be cured.