The delayed onset of Whiplash symptoms. Why does it often occur ?

May 18, 2023 by admin


Whiplash is a common injury that occurs when the head is forcefully and rapidly jerked backward and then forward, often as a result of a car accident or sports-related incident. While many individuals experience immediate symptoms following a whiplash injury, it is not uncommon for some individuals to report delayed symptoms that emerge days or even weeks after the initial incident.

In this blog, Okinawa sports and spinal explores the phenomenon of delayed whiplash symptoms, examining potential causes backed by scientific research and medical expertise.

So why can symptoms be delayed ?

Physiological Factors: Delayed whiplash symptoms can be attributed to various physiological factors within the body. Research suggests that the body’s natural response to trauma, such as the release of adrenaline and endorphins, may temporarily mask pain and discomfort, leading individuals to initially overlook or underestimate their injuries. Additionally, the inflammation and swelling of soft tissues surrounding the neck and cervical spine may gradually increase over time, causing delayed symptoms to manifest.

Psychological Factors: Psychological factors can also contribute to the delayed onset of whiplash symptoms. Studies have shown that the stress and emotional trauma associated with a car accident or similar incidents can influence an individual’s perception of pain. The psychological impact of the event may initially distract the person from recognizing or reporting symptoms, causing a delay in seeking medical attention until symptoms become more pronounced.


  • Tissue Damage and Inflammation: Whiplash injuries can cause microscopic damage to the ligaments, muscles, and other soft tissues in the neck. While immediate symptoms may be minimal, the inflammation and subsequent healing process can take time. As inflammation increases, it may impinge on nerves and exacerbate symptoms, leading to delayed onset pain and stiffness. In our experience there is often a ” 2nd wind ” of symptoms about 4-6 weeks after an initial injury. 


Delayed whiplash symptoms are not uncommon and can occur due to various physiological and psychological factors. Understanding the delayed onset of symptoms is crucial for accurate diagnosis and appropriate treatment.

By acknowledging the potential causes discussed above, both individuals who have experienced a whiplash injury and healthcare professionals can be better prepared to recognize and address delayed symptoms, promoting effective recovery and well-being.

If you have experienced a whiplash or other type of acceleration/ deceleration injury in Okinawa we suggest you chat with one of our experienced physiotherapists or chiropractors that have had years of experience in dealing with whiplash injuries.

To make an appointment with one of our english speaking Chiropractors and and physiotherapists at Okinawa Sports and Spinal click below 


  • Radanov BP, Sturzenegger M, Di Stefano G. Long-term outcome after whiplash injury. A 2-year follow-up considering features of injury mechanism and somatic, radiologic, and psychosocial findings. Medicine. 1995;74(5):281-297.
  • McKinney LA. Early mobilisation and outcome in acute sprains of the neck. BMJ. 1989;299(6704):1006-1008.
  • Mayou R, Bryant B. Psychiatry of whiplash neck injury. The British Journal of Psychiatry. 2002;180(5):441-448.
  • Sterling M, Hendrikz J, Kenardy J, et al. Assessment and validation of prognostic models for poor functional recovery 12 months after whiplash injury: a multicentre inception cohort study. Pain. 2012;153(8):1727-1734.
  • Curatolo M, Bogduk N, Ivancic PC, McLean SA, Siegmund GP, Winkelstein BA. The role of tissue damage in whiplash-associated disorders: Discussion paper 1. Spine. 2011;36(25 Suppl):S309-S315.
  • Lord SM, Barnsley L, Wallis BJ, Bogduk N. Chronic cervical zygapophysial joint pain after whiplash: a placebo-controlled prevalence study. Spine. 1996;21(15):1737-1745.

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