Mnemonics for Differential Diagnosis of Hair Loss

Remember the differential diagnosis of Hair Loss using TOP HAT.


  • Telogen effluvium, Tinea capitis
  • Out of Fe, Zn
  • Physical: trichotillomania, “corn-row” braiding
  • Hormonal: hypothyroidism, androgenic
  • Autoimmune: SLE, alopecia areata
  • Toxins: heavy metals, anticoagulants, chemotherapy, vitamin A, SSRls

Hope that mnemonic helped. Got a better mnemonic for the same? Let us know in the comments below.
Also check out these medical mnemonics

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