Folliculitis is often caused by what specific action in men?

Folliculitis commonly arises from the irritation of hair follicles, and in men, this is frequently associated with shaving. When hair is shaved, especially with dull blades or improper techniques, it can lead to ingrown hairs. An ingrown hair occurs when the hair grows back into the skin instead of out of the follicle, causing inflammation and sometimes infection in the surrounding area. This irritation can result in the development of folliculitis, characterized by red, itchy bumps at the site of the hair follicles.

This action is particularly relevant because many men shave their facial hair regularly, and different shaving methods can influence the likelihood of folliculitis. By understanding this cause, it's possible to take preventive steps, such as using sharper blades, proper shaving cream, and appropriate post-shave care, to minimize the risk of developing folliculitis.