In Ayurveda according to Sushrutaachaarya the skin has seven
layers. These layers when get affected by imbalanced doshas, give rise to
different skin diseases the list of seven layers of skin and diseases which
originate from them are as follows.
Avabhasini - The first and outermost, thinnest layer of skin
. The root word in an Avabhaasini is Bhasin, which means to show, to reflect,
and to enlighten. Thus it is the one which reflects the aura.
Lohita -This is the second in sequence and is slightly
thicker than Avabhaasinee. As the name suggests it has a red hue due to the
presence of various peripheral blood vessels in it.
Conditions characterized by various colored lesions on the
skin like moles, dark circles, black pigmentations occur when vitiated doshas
affect this layer.
Shweta - This is third layer and is thick. Conditions like
eczema, allergic rashes, psoriasis raising various flaccid hanging growths
originate in this layer.
Tamra – This is the fourth layer. Different types of skin
lesions characterized by a copper colored discoloration and rich capillary
network, worsening on exposure to sunlight (Kushtha, Kilaasa) originate in this
layer.
Vedini- This is the true skin, which is responsible for
perception of sensation. Different conditions involving loss of sensation or
burning sensation like Kushtha, Visarpa etc. are related within this layer.
Rohini- it is the sixth layer of skin and actually forms a
covering to many organs. The conditions occurring in this layer are much graves
e.g. various kinds of tumors (mostly malignant), elephantiasis. Damage to this
layer many a time require surgical intervention, some kind of Kshaara karma,
Agnikarma etc. This is crucial layer and if injured seriously then it becomes
difficult to cure.
Mamsadhara - The last, thickest and innermost layer. As the
name suggests it is responsible for holding / supporting the muscles. So these
two meanings imply that it is mostly the covering facial /layer, which is
adhering to the muscles. Diseases that originate here are fistulas, abscess,
and piles.
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