Women's Health
How long does implantation bleeding last?
Estimated wait
~2 days
Based on published sources
Timeline guide
- Faster cases~1 day
- Average cases~2 days
- Slower casesUp to 3 days
If the bleeding lasts more than ~3 days, is heavy, or has clots, it is probably not implantation bleeding — see a doctor. The typical figure is a few hours to about 2 days, not the rare 3-day maximum.
Implantation bleeding typically lasts from a few hours up to about two days, and rarely more than three (Cleveland Clinic). It is light spotting — shorter and much lighter than a normal period, usually with no clots and not enough to soak a pad.
More details
It happens around the time a fertilised egg attaches to the uterus lining, roughly 10–14 days after conception, near when a period would be due.
Last updated: 4 Jul 2026
Information is for general knowledge only.