Due to the sudden drop of estrogen and progesterone levels in the body during menstruation, the small endometrial arteries rupture and the endometrium can exfoliate, necrotize and shed, which does tend to cause a series of uncomfortable reactions in women. Dizziness during menstruation often has the following factors: 1, if the patient itself has anemia, some symptoms of dizziness and lightheadedness may occur or worsen during menstruation; 2, uterine fibroids that are large in size and number, resulting in excessive bleeding during menstruation and dizziness from anemia; 3, patients with low blood pressure often have insufficient blood supply to the head during menstruation, which is more likely to cause dizziness symptoms of; 4, vestibular migraine, patients When they are young, they tend to have mainly migraine headaches, which are induced or aggravated during menstruation, and often transform into various types of dizziness and vertigo at a certain age, such as spontaneous vertigo, positional vertigo, head movement vertigo, etc. The incidence is high, and menstruation can also induce dizziness.