Why does my baby have tension?

Newborn babies can show signs of tension throughout their body for a variety of reasons, many of which are related to their development, birth experience, or environment.

Here are common causes:

1. Birth Trauma or Stress

Tight spaces during labor (especially long or very fast deliveries)-Interventions during birth, like forceps, vacuum extraction, or C-section-Intrauterine constraint, where the baby was stuck in one position too long

2. Nervous System Immaturity

Newborns have an immature nervous system, which can lead to muscle tightness or jerky movements as they learn to regulate tone and reflexes.

3. Retained Primitive Reflexes

Reflexes like the Moro (startle) or tonic neck reflex can cause them to hold tension if they’re overactive or not integrating well.

4. Muscle Tone Imbalances 

Some babies may naturally have high or low muscle tone, leading to either rigidity or floppiness.

5. Torticollis or Body Asymmetry

Tension in the neck (often from birth positioning or trauma) can cause baby to favor one side, leading to full-body compensation patterns.

6. Gastrointestinal Discomfort

Gas, reflux, or colic can cause a baby to arch, clench, or become stiff in response to discomfort.

7. Sensory Processing Sensitivity

Some babies are more sensitive to touch, sound, or light, and may respond with tension or fussiness as a protective response.

8. Emotional Stress or Overstimulation

A noisy, bright, or overly active environment can cause a baby to become overwhelmed and physically tense.

9. Tongue or Lip Tie 

Restrictions in the oral tissues can affect jaw and neck tension and lead to tightness throughout the body.

10. Lack of Movement Variety 

Babies who spend too much time in containers (like swings, car seats, or strollers) may develop muscle tension due to limited movement and positioning.