Yes, they do. Since the period is a natural cycle that a woman has, she indeed will still get her period even if she is in a coma. However, it might be irregular and the flow will vary from month to month.
comas
No coma / coman / comas / comáis No comer (impersonal)
Juan Comas was born in 1900.
Juan Comas died in 1979.
Alex Comas was born on 1971-11-14.
Josep Comas Solà was born in 1868.
Josep Comas Solà died in 1937.
Jorge Comas was born on 1960-06-09.
Xavier Comas Guixé was born in 1977.
"No te lo comas" is Spanish for "Do not eat it".
Jaume Comas Font was born on 1974-08-02.
José Comas Quesada died on 1993-01-14.