10 Lockjaw Symptoms
Reviewed: Dr. Gromatzky
Symptom #7: Hardening of the Abdominal Muscles
Hardening of the abdominal muscles is a symptom which tends to occur in the later stages of the disease, when the infection has spread to most of the body and when the toxin has spread to the entire nervous system.
Usually, muscle spasms and stiffness start on the chewing muscles, spreading gradually within a couple of hours or days toward the facial muscles, jaw and neck muscles, chest muscles, abdomen, back, and extremities.
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