The understanding’s manifestations, therapeutic history and discoveries on examination
are to a great extent enough for the treating doctor to diagnose lichen planus. Yet, there
may be cases in which the early injuries take after those of psoriasis or atopic dermatitis
(in skin friendship); leucoplakia or candidiasis (in oral love), and so on. A punch biopsy may
be needed in such cases to affirm the analysis or to preclude an alternate condition. The skin
biopsy is analyzed under a magnifying lens and the obvious appearance of the injuries
affirms the judgment.

In instances of oral lichen planus, with a specific end goal to recognize it from whitish
precancerous plaques called leukoplakia, a biopsy of the oral injuries might be extremely profitable.