Patient Handout

Humeral Shaft Fracture

Personalized guidance for work, activity, nutrition, and home exercise.

Explanation of Diagnosis

A humeral shaft fracture is a break in the long part of the upper arm bone (the humerus) between the shoulder and the elbow. It usually happens from a fall, a direct blow to the arm, or sometimes a high-energy sports or traffic injury. Common symptoms include significant arm pain, swelling, bruising, and limited use of the arm. Depending on the injury and swelling, you may also notice tenderness along the bone and, less commonly, numbness or tingling in parts of the hand-this should be reported right away.

Specific Work Modifications

  • Keep your injured arm supported in a sling or brace exactly as directed, especially when standing or walking.
  • Avoid lifting, carrying, pushing, or pulling with the injured arm; use the other arm for work tasks.
  • Position frequently used items at waist height so you do not reach overhead or out to the side.
  • Take short breaks every 30 to 60 minutes to rest the arm and prevent pain from building up.
  • Use adaptive tools when possible, such as a one-handed keyboard/mouse setup, a phone stand, and easy-grip utensils.
  • Ask for temporary assistance with tasks that require reaching across your body, working at heights, or using ladders.

Specific Activity Modifications

  • Pause throwing, swinging, overhead reaching, and contact sports until your clinician confirms healing and safe strength progression.
  • Avoid heavy lifting, push-ups, pull-ups, dips, and any exercise that makes you grip and move through pain.
  • Do not do sports drills that involve sudden arm movement, such as hitting, sprinting with arm swings, or falls on outstretched arms.
  • Choose low-impact activities like walking and stationary cycling only if they do not cause increased arm pain.
  • For hobbies like woodworking, gardening, or lifting equipment, switch to two-handed or assisted versions that keep the injured arm still.
  • If you enjoy swimming or weight training, do not restart until cleared; water resistance and lifting commonly increase stress on the healing bone.

Recommended Supplements

  • Vitamin D3, typically 1,000 to 2,000 IU daily, may support bone health, especially if your levels are low.
  • Calcium, typically 1,000 to 1,200 mg per day total from diet and supplements combined, can help meet daily bone-building needs.
  • Omega-3 fish oil, commonly 1,000 mg daily (or up to about 2,000 mg daily if tolerated), may help with general inflammation control in some people.

Recommended Nutrition and Hydration

Diet Recommendations

  • Aim for adequate protein at each meal (for example, lean meats, eggs, dairy, legumes, or tofu) to support tissue repair.
  • Include a variety of colorful fruits and vegetables to provide vitamins and antioxidants that can support recovery.
  • Choose whole grains and healthy fats (olive oil, nuts, avocado, fatty fish) to help maintain steady energy for healing.
  • Limit alcohol and avoid “crash” dieting, since both can interfere with recovery and nutrition.
  • If you have diabetes, kidney disease, or a poor appetite, consider asking your clinician or a dietitian for individualized guidance.

Hydration Tips

  • Drink water regularly through the day and with meals, especially if you are less active than usual.
  • Use urine color as a guide; pale yellow is a practical target for good hydration.
  • If you are thirsty, sweaty, or using a hot environment, include additional fluids or an electrolyte drink as needed.

Home Exercise Prescription

Do these exercises 3 to 5 times per day, focusing on gentle motion and comfort.

  1. Elbow bend and straighten: With your upper arm supported, gently move your elbow through a comfortable range. Do 10 to 15 repetitions.
  2. Wrist and hand range of motion: Open and close your hand and gently bend and straighten the wrist. Do 10 to 20 repetitions each, as tolerated.
  3. Forearm pronation and supination: Keep the elbow supported near your side and slowly rotate the palm up and down within comfort. Do 10 repetitions.
  4. Shoulder blade squeezes: Sit or stand tall and gently pull your shoulder blade back and slightly down without shrugging. Hold 3 to 5 seconds, repeat 10 times.
  5. Gentle pendulum (only if allowed and pain is tolerable): Lean forward with the good arm supported on a surface and let the injured arm hang and make small circles or gentle front-to-back swings. Do 30 to 60 seconds total.

Stop if you feel sharp worsening pain, new numbness or tingling, or a sudden increase in swelling.

Helpful Books

  • "Healing Arts Press Handbooks: The Shoulder Book" written by Peter G. Edson and Bertha M. Edson
  • "The Pain Reset Diet" written by John E. Sarno (and/or related education materials on pain mechanisms)
  • "Sports Medicine for the Adult Patient" written by David Geier and Keith R. Geier
  • "Move Your DNA" written by Katy Bowman
JP
Medically reviewed by Jason Pirozzolo, DO Medical Director · Last reviewed May 2026
Medical Disclaimer: This website provides general educational information only and does not constitute medical advice, diagnosis, or treatment. Use of this site does not create a physician-patient relationship. This site has been reviewed by a licensed physician but should not replace a professional medical evaluation. If you are experiencing a medical emergency, call 911.