The feeling of bubbles in the muscles may be caused by overwork, neuritis, muscle spasm and other factors. 1. Overwork: If you have been under too much pressure at work and study for a long time, staying up late, or exercising too much, it will put the nerves in a highly tense state, which will lead to the sensation of bubbles in the muscles. 2. Neuritis: Neuritis refers to the inflammation, decline or degeneration of nerves or groups of nerves, so that the muscles controlled by the nerves appear activity as well as sensory deficits, patients with neuritis may have a feeling of muscle bubbles. 3. Muscle spasm: muscle spasm is a kind of spontaneous tonic contraction of muscles, often due to excessive fatigue, cold, electrolyte disorders and other factors, which may cause paroxysmal strong contraction of local muscles, severe pain, bubble feeling and other symptoms. When the patient appears to have the feeling of bubbles in the muscles, it is recommended to go to the regular hospital in time for examination, to clarify the cause of the disease and then give treatment.