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Lichen planopilaris: This presents with an intensely itchy red scalp mainly affecting the crown and top of the head.
The condition involves inflammation around the hair follicle causing patchy hair loss.
After hair is lost the skin becomes scarred, making this condition very difficult to treat.
Trichotillomania (compulsive hair-pulling): In this condition, patients suffer from patchy hair loss as a result of habitual hair pulling.
This is often associated with psychological stress.