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.
Written by Dr. Siri Nallapu
Reviewed by Dr. Rohinipriyanka Pondugula MBBS
Last updated on 14th Oct, 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
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
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11 Years • MBBS, MD (Gen Med), DM (Cardiology) AFAPSIC, FIMSA, FSCAI
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Consult Top Cardiologists
Dr. Prabhakar D
Cardiologist
15 Years • MBBS, MD, DM
Chennai
Apollo First Med Hospitals P H Road, Chennai
(25+ Patients)
Dr Vivekan Manoharan
Cardiologist
15 Years • MBBS, DNB General medicine (National Board of Examinations) Dr NB Cardiology (National board of examination)
Chennai
Apollo Hospitals Cancer Centre Nandanam, Chennai
Dr. Vishnu Prasanth
Cardiologist
8 Years • MD, DNB Cardiology
Chennai
Apollo Hospitals Cancer Centre Nandanam, Chennai
Dr. Ankur Agarwal
Cardiologist
18 Years • MD (Medicine), DM (Cardiology)
Lucknow
Apollomedics Super Speciality Hospital, Lucknow
Dr. Vignesh Thanikgaivasan
Cardiologist
11 Years • MBBS, MD (Gen Med), DM (Cardiology) AFAPSIC, FIMSA, FSCAI
Chennai
Apollo Hospitals Greams Road, Chennai
(100+ Patients)
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