How many hairs does the average adult lose per day?

According to the Dr. Oz website, the average person loses between 50 and 100 strands of hair every day. Normal hair loss reverses naturally, with the lost strands re-growing.

Dr. Oz notes that treatment for hair loss is only required or necessary if a person begins to lose more than 50 to 100 strands a day or does not see the hair she has lost growing back. Two types of hair loss exist. One is scarring hair loss, the other non-scarring. Non-scarring hair loss allows for the hair to grow again, while scarring hair loss prevents it from doing so because the hair follicle is damaged. People usually notice above average hair loss when they see more hair than usual on their clothes, hairbrush or pillowcase.