Kann ich THC-Cannabis nehmen, wenn ich Blutverdünner einnehme?

Hello, I have a question

can i take THC cannabis when i inject blood thinners?

I have a knee injury and I’m using blood thinner but I also usually use THC for my head pain reduction because pills almost all the time don’t work for me so I came here to ask if it is bad idea or if I can use it?
thank you