A pilonidal sinus, commonly referred to as PNS, is a small hole or tunnel that forms in the skin. Often, this tunnel fills with pus or other fluid, creating an abscess or cyst. Pilonidal sinus occurs quite frequently. Although painful, many different treatment options are available.
Hair, dirt, or debris build-up can lead to the development of pilonidal sinus, a small hole or tunnel in the skin. While this process seems similar to acne, the difference is that acne surfaces, while pilonidal cysts do not. Often, if left untreated, the cyst will continue to grow as it collects more hair, debris, and dirt. This can eventually lead to a massive cyst or abscess that can become painful and swollen.
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