lossing hair

how do you know that you lossing hair? when is the time to be worry? Is it normal when you wash your hair(and i do it every 4 days) that you have a bit hair in the bottom of the bath? What is the most significunt sign that tell that you lossing your hair? Thank you

It is normal to shed between 100-200 hairs every day as they are replaced by newly formed ones in the hir follicles The ultimate sign is thinning of the scalp hair. Thinning is unrelated to shedding. ,Greetings of Health .Arie Y. Lifshitz M.D Dermatology & Venereology Specialist