This is another one that totally depends on your unique situation. If you're a woman experiencing excessive thinning or shedding, schedule a hair and scalp evaluation right away. It's vital to find out the reason for hair loss as soon as possible to rule out the possibility that it's the symptom of something more serious. Finding the exact reason for your thinning allows us to pinpoint the solutions that will work the best to slow, stop, or reverse your hair loss. Also, catching the cause early gives us the best potential to save your existing natural, growing hair.