Alopecia physical examination
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. ; Associate Editor(s)-in-Chief: Kiran Singh, M.D.  Ogechukwu Hannah Nnabude, MD
The quantity, pattern, presence of scarring, scaling, or erythema are all helpful clues in determining the cause of the hair loss.
Appearance of the Patient
The appearance of the patient can provide clues to the diagnosis of alopecia.
- Normal or with features of scarring
- If the scalp is abnormal it provides clues to the differential diagnosis
- Pattern: Diffuse or patchy
- Male pattern (diffuse): Bitemporal recession +/or vertex loss 
- Female pattern (diffuse): Coronal thinning with preserved anterior hairline 
- Patchy: With preserved hair of variable length as seen in trichotillomania 
- With exclamation point hairs (alopecia areata) 
- With no hair (scarring, traction, syphilis, tinea)
- Patient may also have nails that have a hammered brass appearance, as seen in alopecia areata.
- ↑ "StatPearls". 2020. PMID 28613486.
- ↑ "StatPearls". 2020. PMID 30422511.
- ↑ 3.0 3.1 3.2 Qi J, Garza LA (2014). "An overview of alopecias". Cold Spring Harb Perspect Med. 4 (3). doi:10.1101/cshperspect.a013615. PMC 3935391. PMID 24591533.
- ↑ Sperling LC, Cowper SE, Knopp EA. An atlas of hair pathology with clinical correlations. 2. Informa Healthcare; 2014. [Google Scholar]
- ↑ 5.00 5.01 5.02 5.03 5.04 5.05 5.06 5.07 5.08 5.09 5.10 5.11 5.12 "Dermatology Atlas".