I've been losing a lot of hair lately, so I'm worried about hair loss.

Lately, I'm worried because it seems like a lot more hair falls on the floor whenever I wash or dry my hair. I didn't used to be this concerned, but recently, I notice more hair getting on my hands when shampooing, and quite a bit of hair scattered around after drying. In particular, when I look in the mirror at the crown of my head, it feels like my scalp is a bit more visible than before, so I'm confused whether this is just a seasonal change or if hair loss is actually progressing.

It seems like my hair has gotten thinner overall, and the volume in my bangs and on the crown isn't as good as it used to be. I usually wear my hair tied up, so I didn't pay much attention to it, but when I take photos or look under bright lights, my scalp seems to stand out more, so I'm starting to worry. It might be due to my recent lifestyle or stress, but I'm not sure of the exact cause.

If I suspect hair loss, would it be best to get a scalp examination at a dermatology clinic first? I am also curious about what tests are performed for female hair loss and whether the amount of hair falling out noticeably decreases once treatment begins. I am debating whether I should simply start by looking into hair loss shampoos or supplements, or if it is right to see a doctor first. If anyone has visited a hospital with similar symptoms, I would like to hear about your experiences regarding what tests you underwent and what treatments you started.