Muscle knots are highly irritated muscle fibers that have tightened into a ball in one area of your muscle. These painful, tender spots can feel sore and often occur in your upper back, shoulders, or ...

If you’ve got a lump on top of your shoulder muscle, you have a good chance of it being a trapezius knot. This type of lump in the trapezius muscle — called a myofascial trigger point — is among the ...

Those stiff, painful spots can take up to two weeks to go away on their own. Sophie Walster/iStock via Getty Images Plus Imagine you’ve just completed a tough upper-body workout. Your muscles feel a ...

Muscle knots, or myofascial trigger points, are small, bump-like areas of muscle that can be painful. Treatment often includes home remedies, like applying warm or cold pads. But, professional ...