Lateral Epicondylitis (Tennis Elbow): This is the most common cause of elbow pain and popping, often resulting from overuse or repetitive strain on the forearm extensors.

Medial Epicondylitis (Golfer's Elbow): Similar to tennis elbow but affects the medial (inner) aspect of the elbow, causing pain and popping due to strain on the forearm flexors.
Olecranon Bursitis: Inflammation of the bursa at the back of the elbow can cause swelling, pain, and a popping sensation, especially if the bursa becomes infected or inflamed.
Elbow Ligament Sprain: A sprain in one of the elbow ligaments can lead to instability and a popping sensation, especially during movement.

Fracture (e.g., Radial Head or Olecranon Fracture): Although less common, a fracture can cause a sudden, severe elbow pain and a popping sensation at the time of injury. Missing this diagnosis could lead to improper healing and long-term disability.
Elbow Dislocation: A dislocation can cause significant pain and a feeling of instability or a "pop" at the time of injury. Prompt recognition is crucial for proper management and to avoid complications.
Infection (Septic Arthritis or Osteomyelitis): Infections in the elbow joint or bone can cause severe pain, swelling, and sometimes a popping sensation due to gas production by infecting organisms. These conditions are medical emergencies.

Elbow Tendinosis: A chronic condition characterized by degeneration of the tendons around the elbow, which can cause pain and sometimes a popping sensation due to tendon fiber rupture.
Loose Body in the Elbow Joint: A rare condition where a piece of bone or cartilage breaks off and floats in the joint, causing locking, catching, or a popping sensation.
Nerve Entrapment (e.g., Cubital Tunnel Syndrome or Radial Tunnel Syndrome): Although more commonly associated with numbness, tingling, or weakness, nerve entrapment around the elbow can occasionally cause pain and a popping sensation, especially if there is associated muscle or tendon involvement.