Shoreshthe drift report · all case files
Case file

Prayer callus

The word “resistance” appeared 1 times in this article's opening at its peak in 2015. Today the opening carries none, and neither does the rest of the article, references included.
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Machine-checked against the full current article on 2026-08-02. “resistance” appeared 1 times in this article's opening at its peak. Today it appears nowhere in the article, references included.
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A pilgrim with prayer bump photographed outside Masjid al-Haram . A zebibah (Arabic زبيبة zabība , " raisin "), also known as a zabiba or zebiba , is a mark on the forehead of some Muslims , apparently due to the friction generated by repeated contact of the forehead with the prayer mat during daily prayers .1 Islam requires its adherents to pray five times a day (known as salat ), which involves kneeling on a prayer mat and touching the ground with one's forehead. When done vigorously for extended periods of time, a prayer bump may develop. Some Muslims may consider the presence of a prayer bump to be a sign of religious dedication and piety.2 Some Muslims also believe that on the day of judgment, this bump will particularly fluoresce an immense white light.3 The bump also serves as a public demonstration of one's piety, with some Muslims using various methods to deliberately cultivate the bump to acquire the appearance of a devout Muslim.4 In extreme cases, the callus can be thick enough to create a real bump that protrudes from the forehead.5 They may also develop due to frequent prayer on hard surfaces such as stone floors. A zebibah can be a type of acanthosis nigricans which is a sign of insulin resistance usually from type 2 diabetes. In Egypt, where zebibahs are common, the rate of diabetes was 10.2% in 2000.6 However, it was much larger for certain groups.7 In addition, it was estimated that up to 56% of men and 64% of women are obese.8 Many of these obese people can be pre-diabetic.9 Diabetes mellitus in Egypt: risk factors, prevalence and future burden10

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