Hand Numbness: Causes and Solutions for Beverage Workers

Tingling in the fingers?

I work at a beverage shop, and I shake drinks every day.
Recently, while riding my motorcycle for about two kilometers, my hand starts to feel numb.
Sometimes, I also wake up at night due to the numbness, or when I lie down and use my phone with my hand raised, I experience numbness as well.

Karen, 20~29 year old female. Ask Date: 2021/08/21

Dr. Jiang Junyi reply Neurology

Dear Ms.
Karen,
Your symptoms may suggest carpal tunnel syndrome.
Carpal tunnel syndrome occurs when the median nerve, which passes through the wrist, is compressed by the ligament located above it as it travels through the "carpal tunnel" formed by the carpal bones and ligaments.
The median nerve is responsible for the movement of the thumb and provides sensation to the thumb, index finger, middle finger, and part of the ring finger.

Carpal tunnel syndrome commonly affects individuals who perform repetitive wrist movements, such as mechanics, carpenters, typists, and homemakers, particularly in their dominant hand, with symptoms often exacerbated by work activities.
The incidence of carpal tunnel syndrome in women is 3 to 10 times higher than in men.
Conditions such as diabetes, hypothyroidism, rheumatoid arthritis, and amyloidosis can also contribute to the development of carpal tunnel syndrome.
I recommend consulting a neurologist for further discussion (which may include arranging for nerve conduction studies) and treatment.
Please ensure to practice self-protection, maintain cleanliness and disinfection, and adhere to preventive health measures before and after your medical visit.
Thank you for your inquiry, and feel free to discuss any related questions further!
Wishing you good health and peace,
Dr.
Cheng-Ju Yi, Taoyuan Medical Center

Reply Date: 2021/08/21

More Info

Hand numbness, particularly in the context of beverage workers who frequently engage in repetitive hand movements, can be attributed to several factors. The symptoms you describe—numbness while riding a motorcycle, waking up at night due to numbness, and experiencing numbness while holding your phone—are indicative of potential nerve compression or overuse injuries. Here, we will explore the possible causes of your symptoms and suggest some solutions to alleviate the discomfort.

Possible Causes of Hand Numbness
1. Repetitive Strain Injury (RSI): As a beverage worker, you likely perform repetitive motions, such as shaking or mixing drinks, which can lead to strain on the muscles and tendons in your hands and wrists. Over time, this can cause inflammation and compression of the nerves, leading to numbness.

2. Nerve Compression Syndromes: Conditions such as carpal tunnel syndrome or ulnar nerve entrapment can occur due to prolonged pressure on the nerves in the wrist or elbow. If your work involves gripping or holding objects tightly, this could exacerbate these conditions.

3. Poor Ergonomics: The way you position your hands and wrists while working or using your phone can contribute to nerve compression. For example, holding your phone at an awkward angle or resting your wrist on a hard surface can lead to numbness.

4. Circulation Issues: If you are riding a motorcycle for extended periods, the position of your hands may restrict blood flow, leading to numbness. Additionally, if you have any underlying vascular issues, these could also contribute to your symptoms.

Solutions and Recommendations
1. Ergonomic Adjustments: Evaluate your workspace and make necessary adjustments to improve ergonomics. Ensure that your hands and wrists are in a neutral position while working. Consider using tools or equipment that minimize strain on your hands.

2. Frequent Breaks: Incorporate regular breaks into your work routine. This allows your muscles and nerves to recover from repetitive motions. During breaks, stretch your hands and wrists to relieve tension.

3. Stretching and Strengthening Exercises: Engage in exercises that strengthen the muscles of your hands and wrists. Stretching can help improve flexibility and reduce the risk of injury. Focus on wrist flexor and extensor stretches, as well as grip-strengthening exercises.

4. Proper Hand Positioning: When using your phone or riding a motorcycle, be mindful of your hand positioning. Try to keep your wrists straight and avoid excessive bending. Use a phone holder or stand to reduce the strain on your hands.

5. Cold and Heat Therapy: If you experience numbness or discomfort, applying ice packs can help reduce inflammation. Conversely, heat therapy can relax tense muscles. Alternate between the two as needed.

6. Seek Professional Help: If your symptoms persist or worsen, it is crucial to consult a healthcare professional. A physical therapist can provide tailored exercises and treatments to address your specific condition. Additionally, a doctor may evaluate you for any underlying conditions that require medical intervention.

7. Consider Wrist Supports: Using wrist braces or supports during work or while sleeping can help maintain proper wrist alignment and reduce pressure on the nerves.

Conclusion
Hand numbness in beverage workers can stem from repetitive strain, nerve compression, poor ergonomics, or circulation issues. By making ergonomic adjustments, taking regular breaks, and incorporating stretching and strengthening exercises, you can alleviate symptoms and prevent further complications. If symptoms persist, do not hesitate to seek professional medical advice for a comprehensive evaluation and tailored treatment plan. Taking proactive steps now can help ensure your long-term hand health and comfort in your work.

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