How to Write a Leave Letter for Fever: Format & Samples

Got a fever and need to request a sick day? Writing a leave letter is a simple way to inform your employer. It doesn’t need to be long or complicated—just clear and straightforward. In this blog, we will guide you through how to draft a leave letter for fever, with easy-to-use format and practical samples that will make the process much easier. 

Whether it is a formal request email or a quick message, we have customizable samples for every situation. 

Focus on getting better while we help you handle the details of informing your employer professionally and without stress!

What is a Leave Letter for Fever?

A leave letter for fever is a simple way to inform your employer about your absence due to illness. It serves as a formal request for time off, explaining the reason for your unavailability and the expected duration.

Writing an application for leave guarantees that your absence is recorded properly and helps maintain professionalism. This letter can be short and straightforward but should include key details like the dates you will be away and any supporting information if required. 

Why Should You Write a Leave Letter for Fever to Office?

Taking a few minutes to write a leave letter can save you from misunderstandings. It is a simple step that shows respect for your workplace while giving you time to rest and recover.

• Informs your employer: A leave letter guarantees that your employer knows why you are absent. It avoids confusion and helps them plan your workload.
• Maintains professionalism: Even if you are sick, notifying your office shows responsibility. A simple letter leaves a good impression and keeps things formal.
• Keeps a record: Your leave letter acts as a record of your absence. It is helpful for HR and ensures there is no miscommunication later.
• Sets expectations: By mentioning the expected duration of your leave, you let your team know when you will be back. This helps them manage tasks effectively.
• Shows accountability: Writing a leave letter shows that you value your responsibilities. Even while taking a day off, you show you are considerate of others’ time.
• Legal or policy compliance: Some companies require written leave applications for approval. It is best to follow these rules to avoid issues with HR.

How to Write an Application for Leave of Absence Due to Fever?

Wondering how to write a leave letter for fever? Here are the simple steps you need to follow.

1. Start with a polite greeting: Start your application with a respectful salutation. Use the recipient’s name or designation, such as “Dear Manager” to keep it formal.
2. State the purpose clearly: Clearly explain the purpose of your letter in the opening lines. Mention that you are experiencing fever and need to take time off to rest and recover.
3. Mention the duration of leave: Specify the dates for your leave. For instance, “I will be unable to attend work from [start date] to [end date].” If unsure, mention an approximate return date.
4. Provide additional details: If necessary, include details like a doctor’s note or medical advice. This makes your request more formal and professional.
5. Use polite language for the request: Clearly request approval for your leave. Write something like, “I kindly request your permission for the leave during this period.”
6. Express gratitude: Conclude by thanking the recipient for understanding. A simple “Thank you for your consideration” works well.
7. Close the letter properly: End with a polite closing, such as “Yours sincerely” or “Best regards,” followed by your name and contact information.

When to Submit Leave Letter for Fever?

You should submit a leave letter for fever as soon as possible, ideally before your absence. Informing your employer early helps them to manage your responsibilities while you recover. 

If your condition is sudden, notify them immediately and follow up with an application for leave fever. Timely communication shows professionalism and guarantees that your leave request is handled smoothly.

Leave Letter Format for Fever

If you want to write a formal leave letter for fever , use this structured format. 

1. Subject line

Clearly state the purpose, e.g., “Request for Sick Leave Due to Fever.”

2. Greeting

Start with a polite salutation, such as “Dear [Recipient’s Name/Title].”

3. Opening paragraph

Mention the reason for your email (fever) and state your need for leave.

4. Middle paragraph

Specify the duration of your leave with exact dates or an estimated period.

Offer to provide additional details if needed, such as a doctor’s note.

5. Closing paragraph

Request approval for your leave.

Express gratitude for their understanding.

6. Sign-off

Use a polite closing, e.g., “Best regards” or “Sincerely.”

Include your full name and contact information.

Leave Letter to Manager for Fever – Template 

Here is a basic template you can use to write a leave request letter for fever.

Subject: Sick Leave Request Due to Fever

Dear [Manager’s Name],

I am writing to inform you that I am unwell due to fever and will be unable to attend work. I kindly request leave from [start date] to [end date] to rest and recover.

If needed, I can provide a doctor’s note for your reference. Please let me know if any further details are required.

Thank you for your understanding.

Best regards,
[Your Name]
[Your Designation]
[Your Contact Information]

Official Leave Letter for Fever – Samples 

If you want to write a leave letter for suffering from fever – here are a few free samples you can use. 

Sample 1: Leave Letter for Fever after Taking Leave – Simple

This is a simple leave letter for fever. You can use it if you have already taken a one-day leave due to fever. 

Subject: Sick Leave Request for Fever

Dear [Manager’s Name],

I hope you are doing well. I wanted to inform you that I was feeling unwell due to a fever and was unable to attend work yesterday, [date]. I took a sick leave to rest and recover. Unfortunately, I couldn’t notify you in advance as I was not feeling well enough to do so.

I kindly request you to mark my absence for the day. If any additional documentation or details are required, please feel free to let me know.

Thank you for your understanding and support.

Best regards,
[Your Name]
[Your Designation]
[Your Contact Information]

Also Read - Sick Leave Email in Office: Templates, Samples & Examples

Sample 2: Leave Letter for Fever Already Taken – Detailed

Here is another sample leave letter for fever that you can use. If you have taken more than one day’s leave, use this sample.

Subject: Sick Leave for Fever – Absence from [Start Date] to [End Date]

Dear [Manager’s Name],

I am writing to inform you that I have been suffering from a fever and was unable to attend work from [Start Date] to [End Date]. Unfortunately, my condition required me to rest and recover at home, as I was not physically fit enough to perform my work duties.

I apologize for not notifying you earlier regarding my illness. I understand the importance of keeping the team informed, and I regret the delay in communication. Please note that I am now recovering and anticipate returning to work soon.

For your reference, I have attached a medical certificate from my doctor. If you need any additional information or documents, please let me know.

I kindly request that my absence from [Start Date] to [End Date] be recorded as sick leave. I appreciate your understanding and support during this time, and I look forward to getting back to work once I am fully recovered.

Thank you once again for your consideration.

Sincerely,
[Your Name]
[Your Designation]
[Your Contact Information]

Sample 3: One Day Leave Letter for Fever

If you want a sample for leave letter for one day fever – customize and use this template. 

Subject: Sick Leave Request for Fever

Dear [Manager’s Name],

I hope you are well. Unfortunately, I am suffering from a fever today and will not be able to attend work. I kindly request one day of sick leave to rest and recover.

Please consider my absence for today, [date], and let me know if you need any further details or a medical certificate. I will keep you updated on my health and let you know if I need more time off.

Thank you for your understanding and support.

Best regards,
[Your Name]
[Your Designation]
[Your Contact Information]

Note: 

In most companies leave letter for fever for a day doesn’t require a doctor’s certificate. However, it is best to check your company’s policy. If your company requires doctor’s certificate, make sure you attach it in the email. 

Also Read - One Day Leave Application for Office: Format & Samples

Sample 4: Yesterday Leave Letter for Fever

Subject: Sick Leave for Fever – Absence on [Date]

Dear [Manager’s Name],

I was feeling quite unwell yesterday, [date], due to a fever, and I was unable to attend work. I apologize for not notifying you sooner about my situation.

Please mark me as absent for the day. If you require a doctor’s note or any further details, I am happy to provide them.

Thank you for your understanding.

Regards,
[Your Name]
[Your Designation]

Sample 5: Leave Letter for Viral Fever

Subject: Sick Leave for Viral Fever – Absence from [Start Date] to [End Date]

Dear [Manager’s Name],

I hope this message finds you well. I am writing to inform you that I have been diagnosed with viral fever and, as a result, I have been unable to attend work since [Start Date]. The fever and accompanying symptoms have left me feeling very weak and unwell, so I have taken the necessary rest to recover.

I am attaching a doctor’s certificate confirming my diagnosis, and I expect to return to work on [expected return date], once I have fully recovered. If you require any further information or medical documentation, please let me know.

Please mark my absence from [Start Date] to [End Date] as sick leave. I appreciate your understanding and support during this time.

Thank you for your consideration.

Sincerely,
[Your Name]
[Your Designation]

Also Read - Earned Leave Application: Letter Format & Calculation

Sample 6: Leave Letter for Dengue Fever

Subject: Sick Leave for Dengue Fever – Absence from [Start Date] to [End Date]

Dear [Manager’s Name],

I hope you are doing well. Unfortunately, I have been diagnosed with dengue fever and have been advised by my doctor to take complete rest. I will be unable to attend work from [Start Date] to [End Date] due to the severity of the symptoms.

The doctor has prescribed medications and plenty of rest to help me recover. I will keep you updated about my progress and inform you when I am fit to return to work. A medical certificate from my doctor confirming my diagnosis and the recommended rest period is attached for your reference.

I kindly request that my absence be marked as sick leave for the given period.

Thank you for your understanding.

Best regards,
[Your Name]
[Your Designation]

Sample 7: Leave Letter for Cold and Fever

Subject: Sick Leave for Cold and Fever – Absence on [Date]

Dear [Manager’s Name],

I am writing to inform you that I am suffering from a cold and fever today, [date]. I woke up feeling quite unwell, with symptoms including a high fever, sore throat, and body aches, and I am unable to attend work.

I am resting and taking the necessary medication to recover as quickly as possible. I will keep you updated about my condition and let you know when I am ready to return.

Please consider my absence today as sick leave. If you need any additional details or a medical certificate, I can provide them.

Thank you for your understanding and support.

Kind regards,
[Your Name]
[Your Designation]

Sample 8: Leave Letter for Mother Fever

Subject: Request for Sick Leave to Care for My Mother

Dear [Manager’s Name],

I am writing to inform you that my mother has been suffering from a high fever, and I need to take care of her at home. I am unable to come to work today, [date], as I need to ensure she receives the proper medical attention and support during this time.

I hope to return to work as soon as my mother’s condition improves. Please let me know if you need any further information.

I appreciate your understanding and consideration.

Thank you,
[Your Name]
[Your Designation]

Also Read - Maternity Leave Application Letter for Office with Format & Samples (2025)

Sample 9: Leave Letter for High Fever

Subject: Sick Leave Request for High Fever

Dear [Manager’s Name],

I am suffering from a high fever today, [date], and unfortunately, I am unable to attend work. The fever is accompanied by body aches and weakness, which have left me unable to perform my duties.

I am taking rest as advised by my doctor and will keep you updated on my condition. I expect to return to work soon once I am feeling better.

Please consider my absence today as sick leave. If you need a medical certificate, I can provide it.

Thank you for your understanding.

Best regards,
[Your Name]
[Your Designation]

Sample 10: Leave Letter for Typhoid Fever

If you want to write a typhoid fever leave letter for office – use this sample. 

Subject: Sick Leave Request for Typhoid Fever – Absence from [Start Date] to [End Date]

Dear [Manager’s Name],

I regret to inform you that I have been diagnosed with typhoid fever and my doctor has advised me to take complete rest and follow treatment. I will be unable to come to work from [Start Date] to [End Date] as I focus on my recovery.

Typhoid fever has left me feeling extremely weak, and I need this time to fully recover. I have attached the medical certificate from my doctor for your reference.

Please consider my absence as sick leave. I will notify you once I am able to return to work.

Thank you for your understanding.

Sincerely,
[Your Name]
[Your Designation]

Sample 11: Work from Home Request Due to Fever

Subject: Request to Work from Home Due to Fever 

Dear [Manager’s Name],

I hope this email finds you well. I am writing to inform you that I have developed a fever due to the sudden change in weather. I am experiencing symptoms such as chills, fatigue, and a sore throat, which are making it difficult for me to come into the office today, [date].

Although I am unwell, I am still able to manage my tasks remotely and would like to request to work from home for today. I plan to rest as much as possible between tasks and will keep you updated on my condition.

I expect to be able to return to the office by [expected return date], but if my health requires further rest, I will inform you accordingly. Please let me know if you need any supporting documents, such as a doctor’s note.

Thank you for your understanding.

Best regards,
[Your Name]
[Your Designation]

Also Read - Work From Home Request Email with Sample

Sample 12: Leave Letter for Fever with Children’s Illness

Subject: Sick Leave Request – Caring for My Child with Fever

Dear [Manager’s Name],

I hope you are doing well. Unfortunately, my child is down with a high fever, and I need to take care of him at home today, [date]. The situation is quite urgent, and I am unable to attend work.

As a result, I am requesting a sick leave for today. I’ll be providing all necessary care to my child and will ensure that he gets the treatment he needs to recover.

I expect to return to work tomorrow, but if the situation changes, I will update you promptly.

Please let me know if any further details are required. Thank you for your understanding and support during this time.

Sincerely,
[Your Name]
[Your Designation]

Also Read - Privilege Leave: Meaning, Calculation, Encashment Rules in India

Sample 13: Half-Day Leave Letter for Fever

Subject: Request for Half-Day Sick Leave Due to Fever

Dear [Manager’s Name],

I am writing to inform you that I am experiencing a mild fever today, [date], and I am feeling quite unwell. After consulting with my doctor, it has been advised that I rest and take the necessary medication.

As the fever is not severe, I would like to request a half-day leave today to rest and recuperate in the afternoon. I plan to work in the morning and leave by [time], but I will keep you updated in case my condition worsens.

Please let me know if you need any additional information. Thank you for your understanding and consideration.

Best regards,
[Your Name]
[Your Designation]

Also Read - Half Day Leave Application for Office: Format & Samples

Tips to Write Leave Letter for Fever to Manager

Writing a leave letter for fever to your manager is simple if you follow these tips.

• Use a proper format: Follow a professional format with a clear subject line, salutation, and closing. This guarantees that your leave letter for office due to fever is easy to read and understand.
• Be prompt: Send your leave letter as soon as you realize you need time off. Timely communication helps your manager plan ahead.
• Keep it brief: Avoid unnecessary details about your illness. Focus only on the reason and duration of your leave.
• Avoid emotional language: Stick to a professional tone. Avoid over-explaining or including emotional appeals in your letter.
• Follow company policy: Check your organization’s leave policy. Ensure you meet any requirements, such as providing a doctor’s note.
• Be Available for urgent matters: If possible, mention your willingness to handle urgent tasks remotely or delegate them during your absence.

Also Read - Two Days Leave Application for Office: Format & Samples (2025)

Things to Avoid When Writing a Leave Letter to Boss for Fever

When writing a leave letter for fever to office manager, avoid these common mistakes.

• Being too casual: Even if you have a friendly relationship, keep your language formal. Avoid informal phrases or emojis.
• Over-explaining: You don’t need to go into too much detail about your illness. Keep it brief and to the point.
• Being unclear about dates: Always mention the start and end dates for your leave. Avoid leaving the duration unclear or vague.
• Requesting leave last minute: Don’t wait until the last moment to request leave. Inform your boss as soon as possible.
• Leaving out important information: If your company requires supporting documents, such as a doctor’s note, include this information or mention it in the letter.

By avoiding these mistakes, your leave letter for fever to office manager will be clear, professional, and more likely to be approved.

Wrapping Up

Writing a leave letter for fever is a simple task when you follow the right format. Keep it clear, polite, and professional to guarantee smooth communication with your employer. Taking the time to do this correctly can help you focus on recovering without any stress.

And, while you are taking care of your health, don’t forget to explore new career opportunities. Hirist is a trusted online job portal that helps you find the best IT jobs in India. With a wide range of roles and easy navigation, Hirist makes it simple to connect with top employers in the tech industry.

Also Read - Casual Leave Application for Office: Format & Samples

FAQs

How do I write a sick leave application for office fever?

To write a sick leave application for fever, start by addressing your manager, explaining that you are unwell, and providing the dates you need off. Keep the message polite and clear.

Do I need to submit a medical certificate for sick leave?

In most cases, a medical certificate is required for sick leave if you are absent for more than a couple of days. However, some companies may allow you to take a sick leave without one for short absences. It is always best to check your company’s leave policy for specific requirements.

What should be included in a fever application for office?

A fever application for office should include the reason for leave (fever), the expected duration, and a polite request for approval. You may also mention if a doctor’s note is available.

How long should be the leave letter for fever office?

A leave letter for fever in office should be short and to the point. Ideally, it should be around 3-5 sentences. Avoid unnecessary details to ensure your letter is clear and professional.

What should I mention in a leave letter for suffering fever?

In a leave letter for suffering fever, mention your illness, the days you need off, and any supporting information. It is important to request approval in a polite manner.

How do I approach leave letter writing for fever?

When writing leave letter for fever, be clear and direct. State the reason for your absence and the duration. Always be polite and professional while keeping the letter concise.

Is medical certificate required for 1 day leave?

Generally, a medical certificate is not required for 1-day leave, especially if it is just for a mild illness like a fever. However, this depends on your company’s policy. If your workplace requires a certificate for any sick leave, you may need to provide one even for a single day.

How can I write a sick leave letter for fever?

To write a sick leave letter for fever, mention that you are unwell, specify the leave dates, and politely request approval. It is important to keep the letter short and formal.

How do I inform my boss about a fever?

To inform your boss about a fever, send a short and professional message or email. State that you are unwell, explain that you have a fever, and request sick leave for the day(s) needed.