Serena Williams Reveals a Bald spot on her head

Serena Williams was spotted with a chunk of hair missing from the middle of her head as she left a late night dinner in Hollywood with her socialite pal Brittny Gastineau.
Experts have termed it “traction alopecia”: the type of hair loss associated with hair braiding, weaving, and the wearing of hair extensions.Prolonged traction can cause permanent loss of hair in the affected areas, but if caught early, this type of hair loss is reversible.
Celebrities such as Naomi Campbell, Paris Hilton and Britney Spears are all said to have suffered hair loss as a result of their extensions