Smartphones have become an essential part of everyday life, with people spending hours scrolling through social media, replying to messages, checking emails, playing games and attending online meetings. While prolonged screen time is often associated with eye strain and sleep problems, its potential impact on hand and wrist health is another concern that deserves attention.
According to orthopaedic surgeon Brigadier (Dr) Barun Datta, repeated smartphone use can put stress on the muscles, joints, tendons and nerves of the hands and wrists, particularly when people use their devices for extended periods without changing their posture or taking breaks.
“The structure of the human hand is perfect for various movements, but repeated movements for a long time can put a strain on the muscles, joints, tendons, and nerves of the hands and wrists. Using a smartphone in the same position for a long time can create the problem,” he told Tezzbuzz Lifestyle.
He added that repeatedly using one thumb to scroll or type and keeping the wrist bent while texting can contribute to discomfort.
How Constant Smartphone Use Affects the Thumb
One of the most common repetitive movements associated with smartphone use is thumb scrolling and typing. Navigating apps, sending messages and browsing social media can involve thousands of similar movements throughout the day.
Dr Datta cautioned that repeatedly performing these movements without sufficient breaks may irritate the tendons responsible for moving the thumb.
Some people may experience pain or discomfort around the thumb, particularly after extended periods of use. Repetitive movements may also aggravate symptoms in people who already have thumb-related tendon or joint conditions.
The risk can be greater when prolonged phone use is combined with other repetitive activities, such as computer work, gaming or writing.
How Your Grip and Posture Can Increase Strain
The way people hold their smartphones can also affect their hands and wrists. Using one hand for extended periods, gripping the device tightly or keeping the wrist bent may increase strain on certain muscles and tendons.
Over time, repeated stress can contribute to discomfort, stiffness, tingling, numbness or weakness in the hands and fingers.
According to Dr Datta, these problems usually do not develop overnight. The effects of repeated strain can accumulate gradually, particularly when people continue performing the same movements despite experiencing discomfort.
“What makes the issue worse is the fact that people tend to ignore the problem and keep using their phones despite the pain. What starts as occasional stiffness may develop into chronic pain if the problems are ignored,” he warned.
Persistent symptoms should not automatically be attributed to smartphone use, however, as several underlying conditions can affect the hands and wrists.
Simple Ways to Reduce Hand and Wrist Strain
Reducing smartphone use may not always be practical, but a few changes in daily habits can help minimise unnecessary strain.
1. Use both hands: Avoid relying exclusively on one thumb for prolonged typing or scrolling. Using both hands can distribute repetitive movements more evenly.
2. Change your grip regularly: Alternate hands when appropriate and avoid holding your smartphone in the same position for long periods.
3. Take regular breaks: Put your phone down periodically to allow your hands and wrists to relax. Short, frequent breaks can be especially helpful during extended periods of use.
4. Keep your wrist in a neutral position: Avoid keeping your wrist bent for long periods while texting or browsing. A more natural wrist position can reduce unnecessary strain.
5. Avoid gripping your phone too tightly: Hold the device securely but comfortably. Excessive gripping can increase muscular tension.
6. Use voice-to-text features: Voice typing and other hands-free options can reduce repetitive thumb movements, particularly when sending longer messages.
These adjustments may help reduce strain, but they cannot prevent every hand or wrist condition. Persistent or worsening symptoms require appropriate medical assessment.
When Should You Consult a Doctor?
Occasional tiredness after prolonged smartphone use may improve with rest. However, certain symptoms should not be ignored.
Dr Datta advised seeking medical evaluation if you experience:
- Persistent pain or swelling in the hand or wrist
- Numbness or tingling in the fingers
- Weakness or difficulty gripping objects
- Recurrent stiffness that does not improve with rest
- Pain that interferes with sleep or everyday activities
It is also important not to assume that every hand or wrist problem is caused by smartphone use. Tendon disorders, joint conditions and nerve problems can have different causes, and an accurate diagnosis is important before beginning treatment.
The Bottom Line
Smartphones are an unavoidable part of modern life, but prolonged use without breaks can contribute to repetitive strain in the hands and wrists. Changing your grip, reducing repetitive thumb movements, keeping your wrist in a comfortable position and taking regular breaks can help minimise unnecessary stress.
If pain, numbness or weakness persists, consult a healthcare professional rather than continuing to use your phone through the discomfort.
Note to readers: This article is for informational purposes only and is not a substitute for professional medical advice. Consult a qualified healthcare professional if you have persistent symptoms or concerns about a medical condition.
Brigadier (Dr) Barun Datta is a senior consultant in the Department of Orthopaedic Surgery at Narayana RN Tagore Hospital, Mukundapur, Kolkata.