If you've ever heard your knees pop when you stand up or noticed a cracking sound in your back as you stretch, you’re not alone. These sounds, medically known as crepitus, are common and usually ...

Discover why knees crack and learn when to seek medical advice from experts on knee health and persistent sounds.

Knee popping is often harmless and may occur when a person exercises. However, when it occurs alongside pain, it may be a sign of an underlying problem, such as arthritis or a knee injury. With a knee ...

Neck crepitus, or popping sounds, is usually caused by joint movement or air bubbles. If neck crepitus comes with pain or ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. INDIANAPOLIS, Ind. — Have you heard a loud ...

MIAMI -- Plants make popping sounds that are undetectable to the human ear, according to recordings made in a new study — and they make more sounds when thirsty or under other kinds of stress. The ...