When you are beginning a list of irregular items
No, colons should not be underlined. When using a colon, it should be formatted as regular text within a sentence.
There should be one space after a semi colon.
A colon should be used after the salutation in a letter using the standard-block style.
You should not capitalize a sentence fragment following a colon.
The colon should follow an independent clause, which is a complete sentence that can stand alone. This helps to set up the list that follows the colon.
should i have my colon check at the age of 73 ? last check was 5 years ago , no problems was found
There are colon cleansings foods available. You should actually contact your doctor or pharmisist for a list of foods available to help cleanse your colon
A colon placed after the word including is not correct; this is because a colon should follow only independent clauses, which cannot end with that particular word. In other words, if you can correctly write a period in place of the colon, the colon's use is correct.
I am not convinced that colon cleansing is really medically helpful. If you really are, you should probably direct this question to the people providing the colon cleanse. Here is what WebMD has to say about colon cleansing: http://www.webmd.com/balance/natural-colon-cleansing-is-it-necessary They do not seem to suggest that any diet is particularly necessary pre-cleanse.
Colon cance is serious and should not be taken lightly. An intial colon cancer check will most likely involve a cononoscpy to start and then if need a biopsy.
Comma, semi colon, colon, period, dash, slash, parentheses
As long as there are no anesthetics involved it should be fine.