Hair loss is a common complaint among our patients, both men and women.  Although is it normal to shed hairs each day, excessive hair loss can lead to a thinning hair line, and areas of baldness.  There are hair loss treatments that help promote hair growth or hide hair loss. For some types of hair loss, hair growth may return without any treatment.

Normal Hair Growth

To understand how hair loss happens, it is helpful to understand how hair normally grows.

Each shaft of hair is produced by a hair follicle. The cells in the hair follicle produce hair for about 2-3 years. During this growth phase called “anagen”, each hair grows about 1 centimeter (1/2 inch) per month. After this growth phase, the hair follicle enters a resting phase called telogen during which the hair remains in place, but stops growing. This “resting phase” lasts about 3-4 months, after which the hair falls out. After the hair falls out, the hair follicle starts producing a new shaft of hair.

On average, 90% of the hairs on the head are in the “growth phase” at any one time (and 10% are in the resting phase). People normally shed hairs each day as the hair follicles reach the end of the resting phase and prepare to produce new hairs. 50 to 100 hairs are shed daily from a normal scalp.

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