When a muscle cramp occurs, the muscle contracts forcibly and involuntarily and doesn't relax for the time the cramp lasts. The cramp can last from few seconds up to few minutes.
after a long period of exercise a muscle can cramp
A muscle cramp is likely due to a lack of
Your muscle will detach from bone.
When you experience a leg or muscle cramp, it is because the muscle has constricted or tightened up. The lump you are referring to is the muscle itself that has tightened up. When your muscle relaxes, the cramp goes away.
A painful contraction of a muscle is a cramp or charley horse.
Stop doing whatever activity triggered the cramp, Gently stretch and massage the cramping muscle, holding it in stretched position until the cramp stops, and Apply heat to tense/tight muscles, or cold to sore/tender muscles.
Possibly overuse. If this happens repeatedly, visit your doctor.
Often it is called a cramp.
If a muscle is stimulated too frequently, there are usually negative consequences. For example, the muscle might cramp, tear, or be very sore and temporarily unusable.
A spasm or cramp
A bruise on your upper inside thigh after experiencing a cramp may indicate that the muscle contraction caused damage to small blood vessels, leading to bleeding under the skin. This could be due to a sudden, intense muscle contraction that resulted in trauma to the area. It's also possible that the cramp itself was related to muscle fatigue or dehydration. If the bruise persists or you experience significant pain, it's advisable to consult a healthcare professional.
Such a painful muscle contraction is commonly known as cramp.