Hollow fiber membrane module

A hollow fiber membrane module, comprising:

• a tubular case of which at least one end is open;
• a plurality of hollow fiber membranes disposed within the case;
• a sealing and fixing part that seals a gap between the hollow fiber membranes and fixes the hollow fiber membranes to each other at an opening side of the case and an end of the plurality of hollow fiber membranes, while leaving a hollow interior of the hollow fiber membranes open;
• and
• a sealing part that seals an annular gap between the case and the sealing and fixing part,
• wherein the sealing part is bonded to an inner peripheral surface of the case and to an outer peripheral surface of the sealing and fixing part, while being allowed to expand or contract in a direction in which a spacing of the gap between the case and the sealing and fixing part changes.