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NIH Investigating Possible Link Between COVID Vaccine And Changes To Menstrual Cycles

NEW YORK (CBSNewYork) — Thousands of women are reporting a potential side effect of the COVID vaccine when it comes to their monthly menstrual cycles.

Top federal researchers are now launching a study to see if there is a possible connection, CBS2’s Dr. Max Gomez reported Monday.

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When Dr. Katharine Lee from Washington University got her COVID vaccine, she experienced something unexpected.

“I ended up with really strong cramps and a little bit of breakthrough bleeding after both vaccines,” Lee said.

After a friend and fellow scientist had similar changes after the shot, they created a survey that has received more than 150,000 responses describing excessive or more frequent bleeding, more pain and missed periods.