Myofascial pain syndrome

Myofascial pain syndrome or MPS is a chronic pain disorder in which pressure on certain muscle trigger points (MTrPs) causes pain in the muscle plus pain elsewhere in the body. MPS pain is felt as muscle pain and soft tissue pain.

MPS condition that can be comorbid with ME/CFS, and may be confused with fibromyalgia.

Signs and symptoms
Possible signs and symptoms of MPS include:
 * Deep, aching pain in a muscle
 * Pain that persists or worsens
 * A tender knot in a muscle
 * Difficulty sleeping due to pain

Learn more

 * MPS - Mayo clinic
 * American Society of Anesthesiologists