Any kind of physical trauma—surgery, a car accident, or a severe illness, even the flu—can cause temporary hair loss; more specifically, a type of hair loss called telogen effluvium, which, according to the American Osteopathic College of Dermatology, occurs when stress causes hair roots to be pushed prematurely into their resting or shedding states.
See, hair has a programmed life cycle: a growth phase, an rest phase and a shedding phase. “When you have a really stressful event, it can shock the hair cycle, (pushing) more hair into the shedding phase,” explains Marc Glashofer, MD, a dermatologist in New York City. Hair loss often becomes noticeable three-to-six months after the trauma.
Again (luckily), this is only temporary and hair will start to grow back as your body recovers from the stressors in your life.
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