Piercing Location
Overall, 36,803 pierced sites had a reported complication. The oral cavity, location not otherwise specified, was the most common site associated with a complication, accounting for 67% (n=24,478) of complications (Table 1). Other reported sites included (in decreasing frequency) the ears (21%, n=7551), tongue (5%, n=1669), lip (3%, n=998), navel (2%, n=605), nose (1%, n=540), nipple (1%, n=344), face/body (1%, n=269), genitals/groin (0%, n=183), eyebrow (0%, n=161), hand (0%, n=4), and eyelid (0%, n=1). Piercing complications were more commonly reported among females across all piercing locations except for the eyebrow, which was equal in both sexes.
Complications
Local Infections—Local infections accounted for 36% of reported complication types (n=10,872/30,090): perichondritis (1%, n=85); abscesses (0%, n=25); bacterial colonization (1%, n=106); and local infections, not otherwise specified (98%, n=10,648)(Table 2). The majority of local infections were found to be secondary to piercings of the ear and oral cavity. The nipple was found to be a common site for abscesses (40%, n=10), whereas the tongue was found to be the most common site for bacterial colonization (69%, n=73).
Immune-Mediated Issues—Immune-mediated issues encompassed 5% of the total reported complications (n=1561/30,090). The most commonly reported immune-mediated complications included allergies (31%, n=482), edema and swelling (21%, n=331), dermatitis (18%, n=282), and inflammatory lesions (17%, n=270). The majority were found to occur secondary to ear piercings, with the exception of edema, which mainly occurred secondary to tongue piercings (45%, n=150), and allergy, which primarily was associated with oral piercings (51%, n=245)(Table 2).
Tissue Damage—Tissue damage accounted for 43% of all complications (n=13,036/30,090). The most common forms of tissue damage were trauma (55%, n=7182), dysesthesia (22%, n=2883), bleeding and bruising (18%, n=2376), and pain (3%, n=370)(Table 2). Trauma was mainly found to be a complication in the context of oral piercings (99%, n=7121). Similarly, 94% (n=2242) of bleeding and bruising occurred secondary to oral piercings. Embedded piercings (92%, n=127), deformity (91%, n=29), and necrosis (75%, n=3) mostly occurred following ear piercings. Lip piercings were found to be the most common cause of damage to surrounding structures (98%, n=50).
Oral—Overall, 3193 intraoral complications were reported, constituting 11% of the total complications (Table 2). Oral complications included dental damage (86%, n=2732), gum recession (14%, n=459), and gingivitis (0%, n=2). Dental damage was mostly reported following oral piercings (90%, n=2453), whereas gum recession was mostly reported following lip piercings (59%, n=272).
Proliferations—Proliferations accounted for 795 (3%) of reported piercing complications. The majority (97%, n=772) were keloids, 2% (n=16) were other benign growths, and 1% (n=7) were malignancies. These complications mostly occurred secondary to ear piercings, which resulted in 741 (96%) keloids, 6 (38%) benign growths, and 4 (57%) malignancies.
Systemic—Overall, 2% (n=633) of the total complications were classified as systemic issues, including functional impairment (45%, n=282), secondary organ involvement (24%, n=150), cardiac issues (3%, n=21), and aspiration/inhalation (1%, n=8). Nonlocalized infections such as hepatitis or an increased risk thereof (17%, n=107), tetanus (8%, n=52), chlamydia (1%, n=9), HIV (0%, n=1), herpes simplex virus (0%, n=1), gonorrhea (0%, n=1), and bacterial vaginosis (0%, n=1) also were included in this category. The tongue, ear, and genitals were the locations most involved in these complications (Table 2). Secondary organ involvement mostly occurred after ear (36%, n=54) and genital piercings (27%, n=41). A total of 8 cases of piercing aspiration and/or inhalation were reported in association with piercings of the head and neck (Table 2).
