Tension headaches or tension-type headaches were formerly called “muscle contraction headaches.” They are often described as dull aches, pressure, or tightness on both sides of the head. They can be further classified into frequent or infrequent episodic or chronic tension type headaches.[1][2]
What are tension headaches?
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•Last Updated: May 16, 2025
Tension headaches, previously known as muscle contraction headaches, are characterized by dull aches, pressure, or tightness on both sides of the head. They can be categorized into frequent or infrequent episodic and chronic types.