Ingrown hairs on the legs, bikini line, and underarms

Ingrown hairs are most discussed in the beard area, but they are just as common on the legs, bikini line, and underarms, where frequent shaving and waxing meet curved follicles and friction from clothing.

The same principles apply: hairs cut at sharp angles curl back into the skin, and coarse or curly hair is most prone. The area-specific tweaks come down to friction and method. Tight clothing and waistbands rub the bikini line and worsen ingrowns there, so looser fabrics during a flare help. The underarms and bikini line are sensitive, so gentle exfoliation and careful technique matter more, and harsh scrubbing backfires. Waxing the bikini line, while popular, can be a frequent ingrown trigger.

For body areas that ingrow chronically, the bikini line especially, laser hair reduction is again the most reliable long-term fix and is one of the most common reasons people seek it. In the meantime, the routine is familiar: shave with the grain with a sharp blade, exfoliate gently between sessions, moisturize, avoid picking, and reduce friction. Body ingrowns are the same problem in a different location, and they respond to the same logic of better technique now and hair reduction for the stubborn cases.

Related reading: What actually causes an ingrown hair.

Further reading: Pseudofolliculitis Barbae: A Review of Current Treatment Options (J Drugs Dermatol 2019); Pseudofolliculitis barbae: understanding the condition and the role of facial grooming (Int J Cosmet Sci 2016); Folliculitis keloidalis nuchae and pseudofolliculitis barbae: are prevention and effective treatment within reach? (Dermatol Clin 2014).