Passing blood clots during a period is usually normal ... people who have just started menstruating and those closer to menopause. Many people experience heavy menstrual bleeding.

Long-distance travel, particularly air travel, increases blood clot risk through extended periods of immobility. Travel medicine specialists recommend maintaining movement during long flights ...

HRT raises your level of one or both female sex hormones that fall during menopause. And that may ... women's odds for serious problems, including blood clots, strokes, heart attacks, and breast ...