Both have mild blood-thinning effects.
Curcumin has antiplatelet activity and omega-3 reduces platelet aggregation.
Generally safe at typical doses. Be aware before surgery and inform your doctor.
Known drug category interactions for these supplements. Especially relevant if you take prescription medications.
High-dose fish oil may enhance the blood-thinning effect of anticoagulant medications.
Inform your doctor if taking fish oil with blood thinners. Low doses (1-2g) are usually acceptable but monitoring may be needed.