Check (health) status of MySQL schema table
To monitor your database's health in overall you could simply use:

mysqlcheck --all-databases --auto-repair


or on weekly basis (if you prefer, due to optimize option resource usage)

mysqlcheck --all-databases --auto-repair --optimize 


To verify tables:

mysql
\u mydb
CHECK TABLE mytable FAST QUICK;


The first command will check the integrity for all tables of all databases, if there's any corruption your table will be repaired automatically.
And the second will additionally optimize the table on disk.

Check the explanation about it here:
What is the difference between optimize table and analyze table in mysql