Implantation Bleeding Duration: Typically 1–2 Days, Up to 3 Days of Spotting

Implantation bleeding usually lasts 1 to 2 days. Some women may experience light spotting for up to 3 days.

It occurs when the embryo attaches to the uterine lining, causing minor vessel disruption. The bleeding is typically much lighter than a menstrual period.

If bleeding is heavy, prolonged, or accompanied by severe pain, consult a healthcare provider to rule out other causes.