Have a lrg seroma after hernia surgery may need to be asperated will i be put to sleep or just numbed up and is it painfull to do ?

Not painful: Aspirating a seroma is generally done in an outpatient setting, usually not even requiring numbing medicine (since the pain of a needle stick for aspiration is the same as for the numbing medicine, but depends on how big the seroma and location). In any case, the seroma may require multiple aspirations until it eventually goes away. Without aspiration, this may take months to resolve.

No: This may be a hematoma rather than a seroma. Aspiration can usually be done in an office setting with only local anesthesia. Hematomas tend to resorb on their own.