What is a common symptom of tetanus?

Painful muscle spasms are a hallmark symptom of tetanus, often referred to as "lockjaw." Tetanus is caused by a toxin produced by the bacterium Clostridium tetani, which can lead to sustained muscle contractions. These spasms can be intense and may affect various muscle groups in the body. The spasms typically begin in the jaw and can spread to other areas, resulting in significant discomfort and difficulty in movement, particularly in the neck and back.

The other symptoms mentioned, such as high fever, severe headache, and rash, are not characteristic of tetanus. While individuals may experience some accompanying signs or symptoms, the defining feature of tetanus is the painful muscle spasms along with the stiffening of muscles, which is crucial for recognizing and managing the condition effectively.