REVIEW ON KHILT E SAUDA OR KHILT E ASWAD (BLACK BILE OR MELANCHOLE)
Dr. Syeda Aafreen Ghazali*
ABSTRACT
Sauda literally means black color. Among all khilt, this khilt is black in color so mentioned as Khilt e Sauda. All black color fluids of the body are called as Khilt e Sauda. In Arabic, it is called Khilt e Aswad (Aswad means Black color). Mizaj of Khilt e Sauda is Barid Tabis (Cold and Dry). Sauda is formed in the body by two methods. By precipitation and By oxidation (Ihteraaq). It increases viscosity of the Blood and also takes part in Nutrition. Normal Sauda is the sediment or deposit of Blood. And it performs the functions normally. Abnormal sauda is produced by oxidation or burning of any Khilt or due to oxidation of sauda Itself. The ihteraaq is usually a normal process that is slightly altered either quality or quantity wise. Ihteraaq of Sauda e taba'i (Normal Sauda) means any change in it's Mizaaj due to which its states or Quality changes but black color still persists. It means as the normal sauda is black colored, abnormal sauda which is formed from normal sauda will also be black in color. Other Black color compounds of the body are Melanin, Black iron components as Apophyrin, Ferritin,hemosiderin etc., Bilicyanin. Disharmony of Khilt e Sauda produces yellowish brown to black coloured skin, dryness, anxiousness, sadness, Sleeplessness. Melancholia, psycological disordes like Depression, Anxiety, Leprosy, Tumors, Cancers are some diseases described due to Abnormal or Excess Sauda.
Keywords: Ihteraaq, Precipitation, Depression, Melancholia, bilicyanin.
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