What muscles could cause neck left side pain?

Muscles that may contribute to neck left side pain include sternocleidomastoid, levator scapulae, scalenus anterior, scalenus medius, scalenus posterior, splenius cervicis, splenius capitis. Trigger points, strains, or weakness in these muscles can refer pain to this area.

Neck

Neck Left Side

Q: What causes pain in the neck left side?

Common causes of neck left side pain include sleeping in an awkward position, levator scapulae strain or trigger points, sternocleidomastoid tension from forward head posture, cervical facet joint irritation, muscle spasm from stress or anxiety. The specific cause depends on the nature of the pain, how it started, and which movements aggravate it.

Left-sided neck pain typically involves the left sternocleidomastoid, scalenes, or levator scapulae. It can result from sleeping in an awkward position, sustained postures, or stress-related muscle tension on the left side.

Medical Disclaimer

This information is for educational purposes only and does not constitute medical advice. Consult a qualified healthcare provider for proper diagnosis and treatment of any pain or medical condition.

Common Causes

Sleeping in an awkward position

Levator scapulae strain or trigger points

Sternocleidomastoid tension from forward head posture

Cervical facet joint irritation

Muscle spasm from stress or anxiety

Muscles in This Area

Neck

sternocleidomastoid

Prominent neck muscle turns/tilts head, flexes neck, aids breathing. Visible in fitness for posture/aesthetics.

Sternocleidomastoid strainTorticollisMyofascial pain syndrome

Neck

levator scapulae

The levator scapulae runs from the upper neck vertebrae to the top of the shoulder blade, lifting the scapula toward the head. It's key for shrugging motions and stabilizing the shoulder during overhead lifts. Gym-goers target it indirectly through shrugs and neck training to prevent shoulder hikes and imbalances.

Levator scapulae syndromeCervical strainMyofascial pain syndrome

Neck

scalenus anterior

The anterior scalene anchors from neck vertebrae to first rib, aiding neck flexion and arm elevation. It lifts the first rib during deep breaths, important for overhead athletes. Tension contributes to thoracic outlet issues.

Thoracic outlet syndromeScalene myofascial painCervical radiculopathy

Neck

scalenus medius

The middle scalene runs from cervical transverse processes to first rib, assisting neck lateral flexion and rib elevation. Crucial for breathing during intense workouts and shoulder stability. Often tight in cyclists and throwers.

Scalene syndromeNeurogenic thoracic outlet syndromeCervical strain

Neck

scalenus posterior

The posterior scalene attaches lower cervical vertebrae to second rib, flexing neck and aiding inhalation. Supports posture in endurance sports by stabilizing ribs. Less commonly injured but tightens with chronic coughs.

Scalene myofascial pain syndromeUlnar nerve entrapment mimicCosto-vertebral strain

Neck

splenius cervicis

Lower splenius extends/rotates cervical spine.

Cervical strain

Neck

splenius capitis

Broad muscle upper neck/shoulder blade extends/rotates head. Key for neck strength in presses.

Splenius capitis strainCervicogenic headache

Stretches That May Help

SCM stretch contralateral tilt

Doorway neck stretch

Seated neck rotation

Levator scapulae stretch

Side neck tilt with chin tuck

Scapular depression stretch

Scalene tilt stretch

Upper trap stretch

Doorway pec minor stretch

Side neck stretch with rotation

First rib release

Levator scap stretch

Posterior scalene tilt

Rib cage opener

Side bend with arm raise

Neck flexion

Side tilt

Chin to chest

Neck rotation stretch

Recommended Exercises

When to See a Doctor

Seek medical attention if neck pain is accompanied by arm weakness or numbness, severe headaches, difficulty swallowing, or if it follows a head injury or whiplash event.