What could be the issue if a newborn's arm makes a clicking or popping sound?
Aug 21, 2025
Source: Cainiu Health
Dr. Zhou Xiaofeng
Introduction
Under normal circumstances, possible causes of clicking sounds in a newborn's arm may primarily include immature joint development, tendon sliding during movement, congenital hip dysplasia, elbow dislocation, and synovitis. If discomfort symptoms occur, it is recommended to seek timely medical evaluation and treatment at a reputable hospital. In daily life, it is important to dress newborns in loose and comfortable clothing, avoiding garments that are too tight and may restrict limb movement.
Generally, the possible causes of clicking sounds in a newborn's arm mainly include immature joint development, tendon sliding during movement, congenital hip dysplasia, elbow dislocation, synovitis, and others. If discomfort symptoms occur, it is recommended to promptly visit a regular hospital for diagnosis and treatment. A detailed analysis is as follows:
1. Immature Joint Development
In newborns, tissues such as joint cartilage, synovium, and ligaments have not fully developed, and the joint spaces are relatively large. Slight friction between joint surfaces during movement may produce clicking sounds. This condition will gradually improve as the baby grows and develops. Daily care should avoid excessive pulling or stretching of the newborn's arms.
2. Tendon Sliding During Movement
The muscles and tendons of newborns are not yet fully developed. When moving the arms, the tendons may slide over the bones, producing a snapping sound. This is considered a normal physiological phenomenon and requires no special treatment. Parents can gently massage the newborn's limbs to promote muscle and tendon development.
3. Congenital Hip Dysplasia
This is a common skeletal developmental abnormality in newborns. The hip joint structure is unstable and may produce clicking sounds during movement. It may also be accompanied by symptoms such as unequal leg lengths and asymmetric thigh creases. Under a doctor's guidance, a Pavlik harness can be used for fixation to promote normal hip development, with regular follow-ups to adjust the treatment plan accordingly.
4. Elbow Dislocation
Newborns have loose ligaments around the elbow joint. Improper pulling may cause elbow dislocation, which results in clicking sounds during movement. The newborn may also cry continuously due to pain. A professional physician should perform manual reduction. After reduction, care should be taken to avoid pulling or injuring the affected arm again.
5. Synovitis
This is often caused by infection, trauma, or other factors. When the synovium becomes inflamed in newborns, fluid may accumulate in the joint cavity, producing clicking sounds during arm movement. It may also be accompanied by local swelling and limited mobility. Under medical guidance, ibuprofen suspension or acetaminophen suspension drops may be used to relieve inflammation and pain. If necessary, cefaclor dry suspension may be used for anti-infective treatment.
In daily life, ensure the newborn wears loose and comfortable clothing to avoid restricting limb movement. Handle the baby gently when holding, avoiding forceful pulling of the arms. Regularly observe the newborn's limb movements and seek medical attention promptly if any abnormalities are noticed.
