![close up on a woman's hands holding a calendar, on which there are five days marked with a red X (representing her last period) and five days marked with green circles (representing ovulation)](https://cdn.mos.cms.futurecdn.net/DAxZXyNkgnQpjqLoExZS4Z-320-80.jpg 320w, https://cdn.mos.cms.futurecdn.net/DAxZXyNkgnQpjqLoExZS4Z-450-80.jpg 450w, https://cdn.mos.cms.futurecdn.net/DAxZXyNkgnQpjqLoExZS4Z-500-80.jpg 500w, https://cdn.mos.cms.futurecdn.net/DAxZXyNkgnQpjqLoExZS4Z-650-80.jpg 650w, https://cdn.mos.cms.futurecdn.net/DAxZXyNkgnQpjqLoExZS4Z-840-80.jpg 840w, https://cdn.mos.cms.futurecdn.net/DAxZXyNkgnQpjqLoExZS4Z-970-80.jpg 970w, https://cdn.mos.cms.futurecdn.net/DAxZXyNkgnQpjqLoExZS4Z-1024-80.jpg 1024w, https://cdn.mos.cms.futurecdn.net/DAxZXyNkgnQpjqLoExZS4Z-1200-80.jpg 1200w)
What causes spotting between periods?
There are a number of possible reasons for bleeding between periods, including hormonal changes, infections and certain medical conditions.
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