What is the technical term for any abnormal type of hair loss?

The term "Alopecia" refers to any form of abnormal hair loss. It encompasses a range of conditions that result in hair falling out, whether it be in patches, thinning, or complete baldness. This broad category includes various types of hair loss caused by factors such as genetics, stress, medical conditions, and environmental influences.

Alopecia Areata is a specific type of hair loss characterized by patchy baldness, often caused by an autoimmune disorder. While it falls under the umbrella of alopecia, it does not define the entire range of abnormal hair loss types.

Trichotillomania is a psychological condition where individuals compulsively pull out their hair, leading to noticeable hair loss. This condition is specific and not synonymous with all forms of abnormal hair loss.

Pseudofolliculitis refers to an inflammation of the hair follicles, often experienced after shaving, leading to discomfort and potential hair loss in affected areas but is again a specific condition not representative of all abnormal hair loss.

Thus, "Alopecia" serves as the overarching term that covers all abnormal types of hair loss, making it the most accurate choice in this context.