Famous How Long Does Stress Hair Loss Last References. If you notice sudden or patchy hair loss or more than usual hair loss when combing or washing your hair, talk to your doctor. Not all hair loss is because of stress, but a person may shed significantly more when they experience.

Web a hair is typically in the anagen phase for 2 to 4 years before it enters the telogen phase for 2 to 4 months. The good news is, hair lost because of stress, will generally grow back. The hair will then fall out and be replaced by a new hair.