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What is Pilonidal Disease and What Causes It?

Pilonidal disease is a chronic infection of the skin in the region of the buttock crease. The condition results from a reaction to hairs embedded in the skin, commonly occurring in the cleft between the buttocks. The disease is more common in men than women and frequently occurs between puberty and age 40. It is also common in obese people and those with thick, stiff body hair.

What are the Symptoms?

Symptoms vary from a small dimple to a large mass. Often the area will drain fluid that may be clear, cloudy or bloody. With infection, the area becomes red and tender and the drainage (pus) will have a foul odor. The infection may also cause fever, malaise or nausea.

There are several common patterns of this disease. Nearly all patients have an episode of an acute abscess (the area is swollen and tender and may drain pus). After the abscess resolves, either by itself or with medical assistance, many patients develop a pilonidal sinus. The sinus is a cavity below the skin surface that connects to the surface with one or more small openings or tracts. Although a few of these sinus tracts may resolve without therapy, most patients need a small operation to eliminate them.

A small number of patients develop recurrent infections and inflammation of these sinus tracts. The chronic disease causes episodes of swelling, pain and drainage. Surgery is almost always required to resolve this condition.

How is Pilonidal Disease Treated?

The treatment depends on the disease pattern. An acute abscess is managed with an incision and drained to release the pus and reduce the inflammation and pain. This procedure usually can be performed in the office with local anesthesia. A chronic sinus usually will need to be excised or surgically opened.

Complex or recurrent disease must be treated surgically. Procedures vary from unroofing the sinuses to excision and possible closure with flaps. Larger operations require longer healing times. If the wound is left open, it will require dressing or packing to keep it clean. Although it may take several weeks to heal, the success rate with open wounds is higher. Closure with flaps is a bigger operation that has a higher chance of infection; however, it may be required in some patients. We will discuss these options with you and help you select the appropriate operation.

What Care is Required After Surgery?

If the wound can be closed, it will need to be kept clean and dry until the skin is completely healed. If the wound must be left open, dressings or packing will be needed to help remove secretions and to allow the wound to heal from the bottom up.

After healing, the skin in the buttocks crease must be kept clean and free of hair. This is accomplished by shaving or using a hair removal agent every two or three weeks until age 30. After age 30, the hair shaft thins and becomes softer, and the buttock cleft becomes less deep.

For advanced, specialized care, visit Dayton Colon & Rectal Center. Our pilonidal disease patients come to us from the area of Miami Valley, in the greater Dayton area and in the greater Springfield area, including: Dayton, Huber Heights, Centerville, Englewood and Kettering in Montgomery County, OH; Springfield in Clark County, OH; and Beavercreek and Xenia in Green County, OHCall us at 937.435.8663 or fill out our online Request an Appointment form to schedule a consultation with one of our colorectal specialists.

Testimonials

I just wanted to say thank you very much for getting me in promptly and taking very good care of me during my hard times. I appreciate your office following up on my care and making sure all the testing, pre-certs were taken care of so it was less stressful for me. I also appreciate all the care and support from every staff member in your office. It really shows how much you guys care about your patients.
Thank you,
Pete Damico

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