Forearm Muscle Strain

(Muscle Strain, Forearm; Pulled Muscle, Forearm)

Definition

A forearm muscle strain is a partial or complete tear of the small fibers of the forearm muscles. Forearm muscles allow you to extend and flex your wrist and fingers.
Muscles of the Hand and Forearm
IMAGE
Copyright © Nucleus Medical Media, Inc.

Causes

A forearm muscle strain is caused by:
  • Stretching the forearm muscles beyond the amount of tension they can withstand
  • Suddenly putting stress on the forearm muscles when they are not ready for stress
  • Overusing the forearm muscles over time
  • Getting a direct blow to the forearm muscles

Risk Factors

Factors increase your chance of developing forearm muscle strain include:
  • Participation in sports that overuse the forearm
  • Previous strain or injury to the area
  • Muscle fatigue
  • Weak or tired muscles
  • Repetitive movements that strain the forearm muscles

Symptoms

Symptoms may include:
  • Problems flexing your fingers or wrist
  • Pain while stretching the fingers or wrist
  • Area feels tender and sore
  • Muscle spasms
  • Swelling

Diagnosis

You will be asked about your symptoms and medical history. A physical exam will be done.Most forearm muscle strains can be diagnosed with a physical exam. Images of the area may be needed if severe damage is suspected. Images may be taken with x-ray or MRI scan . Muscle strains are graded according to their severity:
  • Grade 1—Some stretching with micro tearing of muscle fibers
  • Grade 2—Partial tearing of muscle fibers
  • Grade 3—Complete tearing of muscle fibers.; this may also be called a rupture or avulsion

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