Key points
Symptoms
The primary symptoms of HS include painful, inflamed lesions that can range from small nodules to large, deep abscesses. These lesions can rupture, leading to the formation of sinus tracts. The affected areas may be tender, swollen, and have a foul-smelling discharge. The severity of symptoms can vary from person to person.
Causes
The exact cause of HS is not fully understood, but it is believed to involve a combination of genetic and environmental factors. Obstruction of hair follicles and abnormal immune responses with a strong autoinflammatory component are thought to play a role. Hormonal factors, smoking, obesity, and a family history of HS may increase the risk of developing the condition.