What Are Trigger Points?

Trigger points are hyperirritable spots in skeletal muscle—tight bands or knots that are painful when pressed and can cause referred pain (pain felt in a different area). They're common in chronic pain conditions and can contribute to headaches, neck pain, back pain, and other musculoskeletal problems.1

Characteristics of Trigger Points

  • Tender spots in taut muscle bands
  • Pain when compressed
  • Referred pain patterns (pain elsewhere)
  • Local twitch response when pressed
  • Limited range of motion
  • Muscle weakness without atrophy

Types2

Active Trigger Points

  • Cause spontaneous pain
  • Painful at rest
  • Refer pain when pressed

Latent Trigger Points

  • Only painful when pressed
  • Can restrict movement
  • May become active with stress

Common Locations

  • Upper trapezius (neck/shoulder)
  • Levator scapulae (neck)
  • Quadratus lumborum (lower back)
  • Piriformis (buttock)
  • Gluteal muscles
  • Temporalis (jaw/temple)

Treatment Approaches3

Manual Therapy

  • Ischemic compression (sustained pressure)
  • Myofascial release
  • Massage therapy
  • Stretching with spray and stretch

Needle Therapies

  • Dry needling
  • Trigger point injections
  • Acupuncture

Other Treatments

  • Ultrasound therapy
  • TENS
  • Laser therapy
  • Heat application

Self-Treatment

  • Foam rolling
  • Tennis ball or lacrosse ball
  • Massage tools (Theracane, etc.)
  • Sustained pressure for 30-90 seconds
  • Followed by stretching

What Causes Trigger Points

  • Muscle overuse or injury
  • Poor posture
  • Repetitive movements
  • Stress and tension
  • Lack of movement
  • Sleep problems

Prevention

  • Regular stretching
  • Good posture
  • Stress management
  • Ergonomic workspace
  • Regular movement breaks

References

  1. Simons DG, Travell JG, Simons LS. Travell & Simons' Myofascial Pain and Dysfunction: The Trigger Point Manual. 2nd ed. Lippincott Williams & Wilkins; 1999.
  2. Shah JP, Thaker N, Heimur J, et al. Myofascial trigger points then and now: a historical and scientific perspective. PM R. 2015;7(7):746-761.
  3. Cagnie B, Castelein B, Pollie F, et al. Evidence for the use of ischemic compression and dry needling in the management of trigger points of the upper trapezius. Am J Phys Med Rehabil. 2015;94(7):573-583.