Can You Live with One Lung?

Most people are born with two lungs—but what if one is damaged or removed? Could you live with one lung? The answer is yes, many people do, and often live full, active lives. While you might have reduced lung capacity, the body is surprisingly good at adapting to life with just one lung.

Here’s what happens when you lose a lung, how it affects your daily life, and what to expect from recovery.

Why Would Someone Lose a Lung?

Lung removal (known medically as a pneumonectomy) may be necessary for several reasons, including:

• Lung cancer

• Severe lung infections

• Tuberculosis

• Traumatic injury

• Congenital lung conditions

• Non-functioning or severely damaged lung tissue

In some cases, only a portion of the lung is removed (a lobectomy), but in more serious cases, the entire lung is taken out.

Can You Survive with One Lung?

Yes. You can live with one lung, and many people do so with minimal long-term issues. The remaining lung compensates by expanding slightly and increasing its function. Over time, it becomes more efficient at oxygenating the blood.

However, you will likely have less overall lung capacity, which can affect how much physical exertion you can handle, especially during the first few months post-surgery.

How Does Life Change with One Lung?

Living with one lung does bring some changes, but most people can still:

• Walk, talk and go about daily tasks

• Work, travel, and enjoy hobbies

• Exercise, though more gently and with time

• Live a normal lifespan (depending on overall health)

That said, you may notice:

• Shortness of breath, especially when climbing stairs or exercising

• Longer recovery time after physical effort

• Increased risk of chest infections or respiratory illness

• A need to avoid smoking or polluted environments

Your level of activity may need to be adjusted, but you won’t be housebound or bedbound.

Recovery After Lung Removal

Recovery from a pneumonectomy usually involves:

• Several days in hospital

• Weeks to months of rest and physiotherapy

• Breathing exercises to strengthen the remaining lung

• Lifestyle changes, such as quitting smoking or managing weight

You may also need to learn how to protect your chest and avoid putting too much strain on your breathing—especially early in the recovery process.

Can You Exercise with One Lung?

Yes, but it takes time. With proper rehabilitation, many people return to light or even moderate exercise, such as:

• Walking

• Swimming

• Yoga or Pilates

• Low-impact gym sessions

Strenuous exercise like long-distance running may be harder, but not impossible for everyone. Regular cardio and breathing exercises can help build endurance.

What About Flying or High Altitudes?

Air travel is usually safe for people with one lung, once fully recovered. However, some may experience shortness of breath at high altitudes or during long flights. In certain cases, oxygen may be needed, and it’s always best to speak with your doctor before travelling.

Final Word

Yes, you can live with one lung—and live well. While there may be physical limitations at first, the human body is remarkably adaptable. With the right care, support, and lifestyle changes, many people go on to lead full, active lives after losing a lung.

If you're facing lung surgery or supporting someone who is, it's important to focus on recovery, respiratory health, and maintaining a positive, active mindset. With medical support and personal commitment, one lung can be more than enough.