Q: Q: What causes patches of hair loss?  

Answer: A

Alopecia areata is a condition that causes patches of hair loss on the scalp, face, or other parts of the body. It is an autoimmune disorder in which the immune system attacks the hair follicles, causing the hair to fall out. The exact cause is unknown, but it is thought to be a combination of genetic and environmental factors. Androgenetic alopecia, also known as male or female pattern baldness, is the most common type of hair loss and is caused by genetics and hormones. Telogen effluvium is a temporary condition that occurs when the body experiences a shock or stress, causing hair to enter the resting phase and fall out. Trichotillomania is a hair-pulling disorder that can cause hair loss due to repeated pulling or twisting of the hair.

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