Leave Letter for illness: Seeking Medical Treatment

A sample Leave Letter for illness, casually asking the boss for a medical leave
 
Dear Supervisor,

You've known me as a reliable worker for the last 4 years. Lately, I have not been well especially the past few weeks since the weather got colder. I have been feeling really tired like having the flu but without any cold symptoms. I'll be having a complete work-up done - blood tests and TSH tests for my Thyroid. I want to overcome this health slump. I'll be filing my official leave today, so please I hope you could get my leave request approved as soon as possible. So wish me well and I hope I get better.

Leticia

Example Leave Letter for Work

Dear Superintendent,

I would like to file for a leave of absence, I will not be coming in for my shift on August 26, 2010. This is in compliance with the company's 3-week notice policy. I have also informed my superiors of my said leave.

I will be attending an important family function out of town- it is my parent's golden wedding anniversary which also coincides with my sister' death anniversary.

Please be advised accordingly.

Truly yours,
Employee of the Month

More sample excuse letters here