A speculation is women seek medical care more often than men and thus, are diagnosed more often. Pregnancies, menstral irregularities, hormonal issues recquire medical management therefore, as a generalization women are more in tune with their bodies and seek medical care more often than men. Those same "hormonal issues" can trigger autonomoic dysfunction so this is another possible reason why women are diagnosed more frequently with POTS. However, in my case my dysautonomia isn't POTS and is more common in men so as always there are variations to every norm. Carmen