Needle-shaped body

A needle-shaped body, comprising:

• a support section having a tubular shape with a center axis, a proximal end, and a distal end;
• a support substrate positioned in the support section and movable in a direction along the center axis;
• a needle section positioned on a main surface of the support substrate and protruding in a direction from the proximal end toward the distal end;
• and
• a connecting section detachably attaching the support substrate to the support section,
• wherein the support section includes a large inner diameter portion extending from the distal end toward the proximal end, and a small inner diameter portion extending from the proximal end toward the distal end and having an inner diameter smaller than an inner diameter of the large inner diameter portion, the support substrate has an outer peripheral surface that includes an engaging section extending in a direction along the center axis of the support section, the large inner diameter portion of the support section has an inner peripheral surface including an engaged section extending in the direction along the center axis and engaging with the engaging section of the support substrate, the engaging section and the engaged section form a guiding section configured to guide the support substrate along the center axis of the support section, and the support substrate is movable in the support section along the center axis of the support section within a range of an angle θ being from 0° to 40°, where θ is an angle formed by the center axis of the support section intersecting a normal line of the main surface of the support substrate.