Smoking does far more than harm your lungs — it is destroying your bones too

Smoking is most commonly associated with lung cancer, heart disease, and respiratory conditions. The chemicals inhaled during smoking damage blood vessels and contribute to the gradual build-up of plaque over time.

However, the harm caused by tobacco extends well beyond these organs — and one of its least-discussed consequences is the serious damage it inflicts on bones and the spine.

To understand exactly how tobacco use affects skeletal health, HT Lifestyle spoke with Dr Kumardev Arvind Rajamanya, Director and Lead Consultant in Orthopaedic Surgery and Complex Trauma, Robotic Joint Reconstruction and Replacement, Sports Medicine and Arthroscopy at KIMS Hospitals (Krishna Institute of Medical Sciences), Mahadevapura, Bengaluru.

How smoking damages bone health

Dr Kumardev explains that bones are dynamic organs with an inherent ability to repair and renew themselves. However, tobacco use disrupts this natural healing process in several significant ways.

Nicotine, along with other harmful substances found in cigarettes and smokeless tobacco, restricts blood flow to bones and their supporting structures.

Since adequate blood flow is essential for delivering the oxygen and nutrients required for recovery following an injury or surgery, this restriction directly compromises bone health.

Delayed fracture healing is one of the most prevalent consequences of smoking, the orthopaedic surgeon notes. In many smokers, fractures take considerably longer to heal, and in some cases fail to heal at all — a condition known medically as non-union.

"In my professional practice, I always emphasise to my patients that no matter how efficient the surgical operation or medical devices used in the process can be, they will never be able to help with poor healing," Dr Kumardev said.

The effects on the spine

The damage caused by tobacco is not confined to bones. Dr Kumardev warns that the spine is equally vulnerable to harm.

"Tobacco has a huge effect on the spine, too. The discs between our spinal bones act as a cushion and help in shock absorption. The deterioration of these discs occurs sooner in smokers due to poor nutrition and hydration," he said.

This deterioration can manifest in daily life as back pain, disc prolapse, and complications arising from nerve pressure. "It is shocking for many young people to find out that tobacco use could be responsible for their lower back pain," Dr Kumardev added.

Osteoporosis: A major risk for smokers

Another significant concern associated with tobacco use is osteoporosis, a condition that renders bones brittle and fragile.

Dr Kumardev explains that smoking impairs the body's ability to absorb calcium and reduces bone density over time.

Whilst post-menopausal women are particularly susceptible to osteoporosis, men who use tobacco over a prolonged period face an equally elevated risk.

The condition increases the likelihood of serious fractures — including breaks to the hips, spine, and wrist — even from relatively minor accidents.

Is chewing tobacco a safer alternative?

Dr Kumardev is clear that chewing tobacco or gutka does not represent a safe substitute for smoking. Despite the widespread assumption that tobacco is less harmful when not inhaled, nicotine affects bone metabolism regardless of how it is consumed.

There is, however, reason for optimism. "The silver lining here is that once tobacco usage ceases, the healing process begins. Patients who manage to stop using tobacco products before their orthopaedic procedures or during their fracture recovery will tend to heal much quicker and suffer from fewer complications," he explained.

Dr Kumardev concluded with a broader message: as surgeons, doctors strive not only to treat conditions but to identify the underlying factors driving their progression.

For patients experiencing persistent back pain or recurring fractures, tobacco use may well be among the hidden causes going unrecognised.

Note to readers: This article is for informational purposes only and is not a substitute for professional medical advice. Always seek the advice of your doctor with any questions about a medical condition.