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How long does implantation bleeding last?

By Marta Barranquero Gómez B.Sc., M.Sc. (embryologist).
Last Update: 12/11/2025

Implantation bleeding has different characteristics than a menstrual period. Because of this, implantation spotting is usually bleeding of shorter duration, lasting around a few hours or appearing intermittently for a couple of days or three. However, it is not common for it to last longer.

 Marta Barranquero Gómez
Marta Barranquero Gómez
B.Sc., M.Sc.
Embryologist
Graduated in Biochemistry and Biomedical Sciences by the University of Valencia (UV) and specialized in Assisted Reproduction by the University of Alcalá de Henares (UAH) in collaboration with Ginefiv and in Clinical Genetics by the University of Alcalá de Henares (UAH).
License: 3316-CV
Embryologist. Graduated in Biochemistry and Biomedical Sciences by the University of Valencia (UV) and specialized in Assisted Reproduction by the University of Alcalá de Henares (UAH) in collaboration with Ginefiv and in Clinical Genetics by the University of Alcalá de Henares (UAH). License: 3316-CV.