Ultrasound probe

An ultrasound probe comprising:

• a piezoelectric element configured to transmit and receive ultrasound waves;
• and
• a casing configured to house the piezoelectric element, wherein
• a center indication part configured to indicate an approximate center position of at least one side of an ultrasound transmission/reception side surface of the piezoelectric element is provided on a surface of the casing,
• the center indication part is formed such that two or more tangents intersect each other at at least a first intersection and a second intersection on a virtual center line extending in an ultrasound transmission/reception direction of the piezoelectric element and passing through the approximate center position, and that the tangents intersecting each other have gradients of opposite signs,
• the first intersection is located at a position on an ultrasound transmission/reception side of the piezoelectric element,
• the second intersection is located at a position on a side opposite to the ultrasound transmission/reception side of the piezoelectric element relative to the first intersection,
• the tangents intersecting at the first intersection form a projection toward the ultrasound transmission/reception side of the piezoelectric element, and
• the tangents intersecting at the second intersection form a projection toward the ultrasound transmission/reception side of the piezoelectric element or a recess with respect to the ultrasound transmission/reception side of the piezoelectric element.