Which description best characterizes an active myofascial trigger point (MTrP)?

Which description best characterizes an active myofascial trigger point (MTrP)?

• A. Painful only with deep palpation.
• B. Spontaneous pain.
• C. Causes weakness.
• D. No pain.

Answer: (B)

An active myofascial trigger point is a hyperirritable spot in a taut muscle band that produces pain without any provocation—spontaneous pain. That ongoing, spontaneous pain is what sets an active point apart from a latent one, which only hurts when you press on it. While an active trigger point can also cause tenderness on palpation and may contribute to weakness or referred pain, the defining feature is the pain that occurs without being touched. The option describing spontaneous pain best captures this key behavior.

An active myofascial trigger point is a hyperirritable spot in a taut muscle band that produces pain without any provocation—spontaneous pain. That ongoing, spontaneous pain is what sets an active point apart from a latent one, which only hurts when you press on it. While an active trigger point can also cause tenderness on palpation and may contribute to weakness or referred pain, the defining feature is the pain that occurs without being touched. The option describing spontaneous pain best captures this key behavior.