Hair loss is generally within 100 hairs per day, which is a normal phenomenon. Normal human hair growth is a dynamic balance between shedding and growing, so generally how many hairs are lost and how many hairs are grown. When hair loss occurs in the human body, the number of hair loss is often more than the number of hair growth, so that the state of hair loss. When the hair grows gradually or becomes thicker, the number of growth is generally greater than the number of shedding. So for hair loss and hair loss disease, it is actually a dynamic process, rather than directly say how many hair loss is hair loss.