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Feeling Cold After Bypass Surgery

Feeling cold after bypass surgery is common. Understand why you feel chilly, what causes it, and how to manage the sensation during your recovery.

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Written by Dr.Sonia Bhatt

Last updated on 20th Jul, 2025

Introduction

If you or a loved one has recently undergone bypass surgery, you may have noticed feeling unusually cold afterward. This is a common experience, and while it can be uncomfortable, it’s usually temporary. In this article, we’ll explore why this happens, how long it may last, and what you can do to stay warm and comfortable during recovery.

Why Do You Feel Cold After Bypass Surgery?

Several factors contribute to feeling cold after bypass surgery:

1. Reduced Blood Circulation

Bypass surgery involves rerouting blood flow around blocked arteries, which temporarily affects circulation. Since blood helps regulate body temperature, poor circulation can make you feel colder than usual.

2. Anesthesia Effects

General anesthesia slows down metabolism and reduces body temperature. It can take time for your body to regain its normal temperature regulation after surgery.

3. Low Hemoglobin Levels

Surgery and blood loss can lead to mild anemia (low red blood cell count), reducing oxygen supply to tissues and making you feel chilly.

4. Stress and Fatigue

Recovery from major surgery is physically demanding. Stress, fatigue, and weakened immunity can make you more sensitive to cold.

5. Medications

Some postsurgery medications, such as betablockers, can affect blood circulation and contribute to feeling cold.

How Long Does This Last?

For most people, the cold sensation improves within a few weeks as the body heals. However, if it persists beyond a month or is accompanied by other symptoms (like numbness or swelling), consult your doctor.

Consult Specialists For personalised Tips

Dr. Sumanta Chatterjee, Cardiologist

Dr. Sumanta Chatterjee

Cardiologist

12 Years • MBBS,MD General Medicine,DM Cardiology

Kolkata

HealthYou Speciality Clinic & Diagnostics., Kolkata

recommendation

90%

(25+ Patients)

1100

1100

No Booking Fees

Dr. Jayarajah Mariappan, Cardiologist

Dr. Jayarajah Mariappan

Cardiologist

45 Years • MBBS, MD(GEN MEDICINE), DM(CARDIOLOGY)

Chennai

Sooriya Hospital, Chennai

1875

700

Tips to Stay Warm and Comfortable After Bypass Surgery

Tips to stay warm and comfortable after bypass surgery:

1. Dress in Layers

  • Wear warm, breathable clothing like cotton or wool. Layering helps trap body heat. Don’t forget socks and a light cap if needed.

2. Keep Your Room Warm

  • Maintain a comfortable room temperature (around 22-24°C). Use blankets but avoid overheating.

3. Stay Hydrated and Eat Warm Foods

  • Drink warm fluids like herbal tea, soups, and warm water. Proper hydration improves circulation.

4. Gentle Movement

  • Short, slow walks (as advised by your doctor) help improve blood flow and warmth. Avoid sitting or lying down for too long.

5. Avoid Sudden Temperature Changes

  • Steer clear of extreme cold or hot environments. Gradual adjustments are better for your body.

6. Check for Anemia

  • If fatigue and coldness persist, ask your doctor for a hemoglobin test. Ironrich foods (spinach, lentils, lean meats) can help.

7. Monitor for Other Symptoms

If you experience:

  •  Persistent shivering

  •  Blue or pale fingers/toes

  •  Swelling or numbness

Consult your doctor immediately, as these could indicate circulation issues.

When to Seek Medical Help?

While feeling cold is normal initially, contact your doctor if:

  •  It doesn’t improve after a few weeks

  •  You develop fever, dizziness, or shortness of breath

  •  You notice unusual swelling or pain

Final Thoughts

Feeling cold after bypass surgery is a common but manageable part of recovery. With proper care, warmth, and gradual activity, your body will adjust over time. Listen to your body, follow medical advice, and don’t hesitate to reach out to your healthcare provider if needed.

Need Personalized Advice?

If you have concerns about your recovery, Apollo 24|7 offers expert consultations with cardiologists. You can book an online appointment or schedule a followup test for peace of mind.

Consult Top Cardiologists

Dr. Sumanta Chatterjee, Cardiologist

Dr. Sumanta Chatterjee

Cardiologist

12 Years • MBBS,MD General Medicine,DM Cardiology

Kolkata

HealthYou Speciality Clinic & Diagnostics., Kolkata

recommendation

90%

(25+ Patients)

1100

1100

No Booking Fees

Dr. Jayarajah Mariappan, Cardiologist

Dr. Jayarajah Mariappan

Cardiologist

45 Years • MBBS, MD(GEN MEDICINE), DM(CARDIOLOGY)

Chennai

Sooriya Hospital, Chennai

1875

700

Consult Specialists For personalised Tips

Dr. Amit. A. Bharadiya, Cardiologist

Dr. Amit. A. Bharadiya

Cardiologist

12 Years • MBBS, MD General Medicine, DNB Cardiology, FSCAI

Maharashtra

Surabhi Hospital, Maharashtra, Maharashtra

1100

90 Cashback

Dr. Sumanta Chatterjee, Cardiologist

Dr. Sumanta Chatterjee

Cardiologist

12 Years • MBBS,MD General Medicine,DM Cardiology

Kolkata

HealthYou Speciality Clinic & Diagnostics., Kolkata

recommendation

90%

(25+ Patients)

1100

1100

No Booking Fees

Dr. Jayarajah Mariappan, Cardiologist

Dr. Jayarajah Mariappan

Cardiologist

45 Years • MBBS, MD(GEN MEDICINE), DM(CARDIOLOGY)

Chennai

Sooriya Hospital, Chennai

1875

700

Dr. Mangesh Danej, Cardiologist

Dr. Mangesh Danej

Cardiologist

8 Years • MBBS, MD (General Medicine), DNB (Cardiology)

Pune

Dr Danej clinic, Pune

recommendation

98%

(375+ Patients)

800

No Booking Fees

Dr. M Sudhakar Rao, Cardiologist

Dr. M Sudhakar Rao

Cardiologist

8 Years • MBBS, MD General Medicine, DM Cardiology

Bengaluru

UMC, Kormangla, Bengaluru

500

No Booking Fees

Consult Top Cardiologists

Dr. Amit. A. Bharadiya, Cardiologist

Dr. Amit. A. Bharadiya

Cardiologist

12 Years • MBBS, MD General Medicine, DNB Cardiology, FSCAI

Maharashtra

Surabhi Hospital, Maharashtra, Maharashtra

1100

90 Cashback

Dr. Sumanta Chatterjee, Cardiologist

Dr. Sumanta Chatterjee

Cardiologist

12 Years • MBBS,MD General Medicine,DM Cardiology

Kolkata

HealthYou Speciality Clinic & Diagnostics., Kolkata

recommendation

90%

(25+ Patients)

1100

1100

No Booking Fees

Dr. Jayarajah Mariappan, Cardiologist

Dr. Jayarajah Mariappan

Cardiologist

45 Years • MBBS, MD(GEN MEDICINE), DM(CARDIOLOGY)

Chennai

Sooriya Hospital, Chennai

1875

700

Dr. Mangesh Danej, Cardiologist

Dr. Mangesh Danej

Cardiologist

8 Years • MBBS, MD (General Medicine), DNB (Cardiology)

Pune

Dr Danej clinic, Pune

recommendation

98%

(375+ Patients)

800

No Booking Fees

Dr. M Sudhakar Rao, Cardiologist

Dr. M Sudhakar Rao

Cardiologist

8 Years • MBBS, MD General Medicine, DM Cardiology

Bengaluru

UMC, Kormangla, Bengaluru

500

No Booking Fees

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