Medical News Today: What causes spotting before a period?

Spotting before a period is usually harmless, and it may not always have a clear cause. However, it can sometimes be an early sign of pregnancy. Other possible causes can include hormonal fluctuations, starting a birth control pill, and perimenopause. Learn more here.
Source: Health News from Medical News Today - Category: Consumer Health News Tags: Women's Health / Gynecology Source Type: news