Cutaneous Signs of Piety

Judaism
Hyperpigmentation has been described in Jewish men at Talmudic seminaries due to the practice of reciting scriptures, which involves a rocking motion known as daven that leads to friction on the back.¹⁵ Lesions associated with this practice typically appear as isolated macules or a continuous linear patch over the skin of the bony protuberances of the inferior thoracic and lumbar vertebrae. Allergic contact dermatitis has been reported in Jewish individuals due to exposure to a variety of agents during religious practices, such as potassium dichromate, which is present in the leather used to make phylacteries or tefillin (boxes containing scripture that are secured to the forehead with straps that are then tied to the left arm during prayer). This finding has been noted in some or all areas of contact including the forehead, scalp, neck, left wrist, and waist.¹⁶

It is customary for both Orthodox Jewish and Muslim women to be concealed by clothing, which predisposes them to vitamin D deficiency^17,18 but also protects them from developing malignant melanoma.¹⁹ Neonates have developed genital herpetic infections following circumcision due to the ancient practice of having the mohel (the person who performs the Jewish circumcision) suck on the wound until the bleeding stops.²⁰

Hinduism
Hinduism espouses an eclectic philosophy of life subsuming numerous beliefs involving guardian deities, invoked by sacred marks, symbols, and rituals. Marks generally are placed on the forehead or other specified sites on the body. Sandalwood paste as well as vibhuti and kumkum powders most commonly are used, which can cause allergic contact dermatitis. Vibhuti is holy ash prepared by burning balls of dried cow dung in a fire pit with rice husk and clarified butter. Kumkum is prepared by alkalinizing turmeric powder, which turns red in color. A case of contact allergic dermatitis was reported in a Hindu priest who regularly used sandalwood paste on the forehead and as a balm for an ailment of the hands and feet.²¹ In our experience, vibhuti also has caused dermatitis on the forehead as well as on the neck and arms. The main difference between the 2 eruptions is that sandalwood dermatitis generally is localized to the center of the forehead as a circular or vertical mark or often in the center of the left palm, which is used to mix sandalwood powder with water to make a paste (Figure 4), while vibhuti contact dermatitis typically presents as a broad horizontal patch on the forehead because the powder is smeared with the middle 3 fingers (Figure 5). Perfumes used by some Muslim individuals before prayer that are applied on the clothes can mimic this type of contact dermatitis, but eruptions typically are confined to the fingers and palms.²² Contact dermatitis caused by necklaces made with beads of the stem of the Ocimum sanctum (holy basil) plant and seeds of the evergreen tree Elaeocarpus ganitrus have been reported.²³ Calluses are sometimes seen in individuals who meditate for long hours while sitting in a cross-legged position and usually occur on or uncommonly below the lateral malleolus of the right foot, similar to practitioners of yoga.²⁴

Figure 4. Dermatitis on the palm and forehead from mixing sandalwood powder with water and then applying a sacred mark on the forehead.

Hemorrhaging and crusting below the lateral malleolus of the right foot have been reported in Buddhist monks due to sitting in a cross-legged position for prolonged periods of meditation.²⁵ Hyperpigmentation of the knees, ankles, and interphalangeal joints of the feet has been seen after sitting in the traditional Japanese meditative position.²⁶ Tattoos of Hindu gods are common, while tattoos are forbidden in Islam and Judaism. Attributes of prominent deities branded on the body may be seen. Discrete sarcoidlike nodules along the axillae and chest wall have been attributed to a Hindu ritual (kavadi) that is performed annually as a form of self-inflicted punishment for their sins in which devotees pierce the chest wall with spokes to form a base over a heavy cage in which offerings are carried, and skewers passed through the cheeks have resulted in similar nodules in the oral cavity.^27,28 Consumption of cow’s urine during rituals may induce acute urticaria.²⁹ Lichen planus of the trunk³⁰ and leukoderma of the waist³¹ may be induced by köbnerization or contact allergy from wearing sacred threads, respectively.

Figure 5. Broad horizontal band of vibhuti dermatitis on the forehead.

Sikhism
Sikhism, a religion founded in the 15th century, epitomizes the high-water mark of the syncretism between Hinduism and Islam. Men must abstain from cutting their hair; pulling and knotting the hair to maintain a coiffure can cause traction alopecia in the submandibular region and the frontal and parietal areas of the scalp as well as ridging and furrowing of the scalp resembling cutis verticis gyrata. Fixer, a product used to keep the beard intact, can cause contact dermatitis. The tight broad band of cloth (known as a ribbon) that is worn around the head to keep hair intact beneath a turban may cause forehead lesions. Discoid lupus erythematosus–like lesions or painful chondrodermatitis of the pinnae due to pressure from wearing a starched turban have been observed, also called “turban ear” from prominence of both anthelices.^32,33 A case of a Sikh man who developed oral sarcoidal lesions from body piercing has been reported.²⁸