Is 100lbs considered underweight?

Willow4
I'm just at 5'2 so pretty short but I don't think I look underweight (See avatar photo) I have been known to be smaller at around 96-97lbs.

I horse ride/race so I have to monitor my weight which can be really tough and I'm conscious that my weight seems too small. I never know whether BMI calculators are that helpful seeing as there are lots of things they don't take into account.

Thank you! :-)
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Is 100lbs considered underweight?
7 Opinion