Hair growth
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Hair growth
Most scalp hair grows steadily. After a growth phase that lasts between 2 and 6 years, scalp hair enters a resting phase that lasts 2 to 3 months. Hair is shed at the end of the resting phase.
A person normally sheds from 50 to 100 hairs a day. After a hair is shed, it is replaced by a new hair from the same follicle, and the growing cycle starts again. Scalp hair grows about
Credits
| Author | Jan Nissl, RN, BS |
| Editor | Susan Van Houten, RN, BSN, MBA |
| Associate Editor | Tracy Landauer |
| Primary Medical Reviewer | William M. Green, MD - Emergency Medicine |
| Specialist Medical Reviewer | Alexander H. Murray, MD, FRCPC - Dermatology |
| Last Updated | July 3, 2007 |
| Last updated: | July 03, 2007 |
|---|---|
| Author: | Jan Nissl, RN, BS |
| Reviewed By: | William M. Green, MD - Emergency Medicine, Alexander H. Murray, MD, FRCPC - Dermatology |
| Editors: | Susan Van Houten, RN, BSN, MBA, Tracy Landauer |
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