The document discusses different types of hair loss complaints and alopecia. It defines various types of alopecia including alopecia areata, alopecia mechanica, alopecia diffusa, and lichen ruber planopilaris. It also outlines several diagnostic methods that can be used to examine hair and scalp conditions like the hair pull test, hair rub test, dermatoscopy exam, trichogram, phototrichogram, longitudinal mounting, and skin biopsy. Finally, it briefly mentions some helpful options for daily living with hair loss like extensions, wigs, hairpieces, and hair transplantation.