Doctor, do you think he'll ever recover from this comma?

How do you spell "comma?"
C-O-M-M-A.
For both types of "commas?"
What do you mean both types? Do you mean a colon?
No. What about for a medical comma?
You mean "coma."
So one "m?"
Yes, to be in a medical coma has just one "m." Also, it's pronounced very differently.