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Symptoms of Pilonidal sinus

The dents or depressions that can develop into pilonidal sinuses don’t usually have any symptoms until they become infected. You may notice a painless bump or a hole in the skin between your buttocks, while washing yourself.

When a pilonidal sinus becomes infected, it can be sore, red and swollen.

Some people find that severe symptoms develop over a number of days. In these cases of acute infection, pain and swelling appear quickly, and soon an infected abscess full of pus and dead skin cells develops in the surrounding skin.

Pilonidal sinus can also be a long-term problem that keeps coming back. It may cause some pain but then pus comes out from the sinus, and the pain eases as the pressure is released. The pus may be stained with blood. This cycle may continue for some time, and even if it’s not always painful, the infection won’t go away until it’s treated.

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