Trichology is the science of the hair and scalp, diagnosing and treating hair and scalp disorders.
For example, - hair shedding/loss, bald patches (alopecia areata), psoriasis, seborrheic eczema, dandruff, male & female pattern hair loss, and diagnosing diseases & disorders of the hair and scalp.
Along with the initial examination, many things are considered in the consultation. I will be looking for deficiencies, diet, lifestyle, just to name a few.