A diagnosis of tennis elbow is the result of repeated gripping or twisting motion of the muscles in the forearm.
The National Institutes of Health (NIH) states, ʺTennis elbow is inflammation, soreness, or pain on the outside (lateral) side of the upper arm near the elbow.ʺ
The inflammation and pain of tennis elbow is due to the small tears in the tendons near the elbow.
Symptoms of tennis elbow include:
• Insufficient forearm functional strength
• Forearm muscle tightness
• Weak grasp
• Difficulty holding onto, pinching, or gripping objects
• Elbow pain that gradually worsens
• Point tenderness at or near the insertion sites of the muscles of the lateral or medial elbow
• Pain radiating from the outside of the elbow to the forearm and back of the hand when grasping or twisting
• Pain, stiffness, or insufficient elbow and hand movement
Tennis elbow treatment includes: activity and/or equipment modification, rest and medication.
https://www.empowher.com/tennis-elbow/content/tennis-elbow-symptoms-treatment-and-exercises