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Highlights:

• Survey of more than 12,000 UK women finds heavier, longer periods linked to long Covid
  
• Symptom severity rises and falls across the menstrual cycle, worsening during periods
  
• Tests reveal inflammation in womb lining and hormonal changes, but no damage to ovaries
  
• Iron deficiency risk may exacerbate fatigue, dizziness and other common long Covid symptoms
  

Study highlights link between long Covid and menstrual changes

Women with long Covid are more likely to experience longer and heavier periods, putting them at increased risk of iron deficiency, researchers have found. The findings come from a UK survey of more than 12,000 women, which also showed that the severity of long Covid symptoms fluctuated across the menstrual cycle and often worsened during menstruation.

Findings from UK survey

Between March and May 2021, 12,187 women completed an online survey. Of these, more than 1,000 had long Covid, over 1,700 had recovered from the virus, and 9,400 had never tested positive. The study revealed that women with long Covid reported heavier and longer periods, as well as more frequent bleeding between cycles, compared with other groups.