A pilonidal cyst is a pocket or sac of tissue, typically filled with fluid or air, that develops in the crease of the buttocks, near the tailbone. It’s often caused by trapped hair and skin cells that become infected. While some pilonidal cysts may be asymptomatic, many become painful and infected, leading to swelling, redness, and drainage. Treatment typically involves surgical removal of the cyst and the infected tissue, along with measures to prevent recurrence, according to Mayo Clinic.
Elaboration:
Appearance:
A pilonidal cyst may appear as a small pit or dimple in the skin, often with a dark spot or hair inside.
Causes:
Pilonidal cysts are thought to develop when hairs become trapped in the skin and push inward, leading to inflammation and cyst formation.
Symptoms:
A pilonidal cyst may be asymptomatic initially, but it can become painful, swollen, and red if infected. An infected cyst may also drain pus or bloody fluid.