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Pain under your left breast is concerning, but it doesn’t always mean you’re having a heart attack. ... Breast-related causes Muscle soreness. There are a bunch of muscles in your chest, and ...
Myoclonus is a brief, involuntary, irregular (lacking rhythm) twitching of a muscle, a joint, or a group of muscles, different from clonus, which is rhythmic or regular. Myoclonus (myo-"muscle", clonus "spasm") describes a medical sign and, generally, is not a diagnosis of a disease.
What causes pain under your left breast? 1. Muscle Soreness. Experiencing slight physical discomfort is normal after an intense workout—it just means you committed (perhaps a little too hard).
A fasciculation, or muscle twitch, is a spontaneous, involuntary muscle contraction and relaxation, involving fine muscle fibers. [1] They are common, with as many as 70% of people experiencing them. [1] They can be benign, or associated with more serious conditions. [1]
Pectoralis minor syndrome (PMS) is a condition related to thoracic outlet syndrome (TOS) that results from the pectoralis minor muscle being too tight. [1] PMS results from the brachial plexus being compressed under the pectoralis minor [2] while TOS involves compression of the bundle above the clavicle. In most patients, the nerves are ...
Compression of a trigger point may elicit local tenderness, referred pain, or local twitch response. The local twitch response is not the same as a muscle spasm. This is because a muscle spasm refers to the entire muscle contracting whereas the local twitch response also refers to the entire muscle but only involves a small twitch, no contraction.
Myalgia or muscle pain is a painful sensation evolving from muscle tissue. It is a symptom of many diseases . The most common cause of acute myalgia is the overuse of a muscle or group of muscles ; another likely cause is viral infection , especially when there has been no injury .
Breast pain is the symptom of discomfort in either one or both breasts. [2] Pain in both breasts is often described as breast tenderness, is usually associated with the menstrual period and is not serious. [1] [3] Pain that involves only one part of a breast is more concerning, [1] particularly if a hard mass or nipple discharge is also present ...