Which skin condition can be exacerbated by improper hair removal techniques?

Ingrown hairs occur when hair follicles become clogged or when hair grows back into the skin instead of outward. Improper hair removal techniques, such as incorrect shaving methods, waxing, or using dull blades, can lead to irritation, inflammation, or increased likelihood of hair becoming trapped beneath the skin. This results in the characteristic bumps and redness associated with ingrown hairs.

While psoriasis and eczema are indeed skin conditions that may be affected by external factors, they are primarily driven by underlying biological and environmental factors, rather than directly influenced by hair removal practices. Thus, the relationship between improper hair removal techniques and ingrown hairs is more direct, making it the correct answer in the context of this question.