Analysis of diseases that cause hair loss depends on which of the variety of types of hair loss diseases you are suffering from. When a patient with a precise hair condition enters a clinic the first duty of the dermatologist is to diagnose his hair loss disease, spot which type of hair loss diseases he is suffering from, and then prescribe treatments or hair care remedies. The most common method for diagnosis of hair loss diseases involves information gathering through questioning. Apart from questioning, use of diagnostic techniques like a hair pluck test can also help to identify diseases that cause hair loss.
Localized hair loss diseases can be Alopecia Areata , but might be scalp ringworm. Some skin scraping taken from the scalp are placed on a slide, some potassium hydroxide is applied, and then the result is examined under a microscope to see if any fungi can be seen. A positive result confirms ringworm.
Other tests may be done on blood samples looking for inflammation, minerals, or viral infections.