About Pilonidal Cyst
A pilonidal cyst is an abnormal pocket found in the skin in any part of the body. It typically contains hair and skin debris. In most cases, it develops near the tailbone on the upper part of the cleft of the buttocks. These are cysts that normally occur when hair perforates the skin becoming embedded. If it gets infected, it can become an abscess that can cause mild to severe pain. It can be drained by making a small incision or the cyst can be surgically removed. It is usually a problem that occurs in young men and the problem tends to recur. It often affects people who sit for prolonged periods like bus/truck drivers. Although not very common, chronic infected pilonidal cysts can eventually lead to the development of a form of skin cancer called squamous cell carcinoma.
Signs and Symptoms of Pilonidal Cyst
The signs and symptoms of a pilonidal cyst may include the following:
- Reddening of the skin
- Drainage of pus and blood from an opening in the skin
- Foul odor from draining pus
If you notice any of these signs and symptoms, it would be best to consult your physician.
Causes and Risk Factors of Pilonidal Cyst
It is still uncertain in regards to the actual cause of the development of pilonidal cysts. Most are a direct result of loose hair penetrating the skin. Friction and pressure from tight clothing, skin against skin rubbing, long periods of sitting and similar factors force the hair into the skin.
The body then sees the hair as a foreign substance thus the creation of a cyst around it.
Another possible explanation for the development of pilonidal cysts is the normal stretching or motion of layers of the skin resulting in the enlargement and rupture of hair follicles which is the structure where hair grows. The cyst forms in the surrounding area of the ruptured follicle. Poor hygiene is also believed to be a major factor in the development of pilonidal cysts. Some experts also believe that dietary factors like high consumption of fat can cause pilonidal cysts, but there is still not enough evidence to prove so.
These are risk factors for developing pilonidal cysts according to experts:
- Being overweight or obese
- Having an inactive lifestyle
- Prolonged sitting
- Having excess hair in the body
- Having stiff or course hair
- Having poor hygiene
Tests and Diagnosis for Pilonidal Cyst
A physician diagnoses a pilonidal cyst by asking about the history of the patient and the symptoms of the cyst. A physical examination will also be done which can find the following:
- Redness, tenderness and swelling typically in the cheeks of the buttocks.
- Increased level of white blood cells from a blood sample
- Inflammation surrounding the cyst
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Treatments and Medications for Pilonidal Cyst
Antibiotics can be used if there is a severe infection, but they do not heal a pilonidal cyst. There are several options and choosing one depends on the physician and particular case. The common technique for treatment is making an incision and draining the cyst. The hair follicles will also be removed and the cavity will be packed with gauze. This is a relatively simple procedure that is done under local anesthesia.
Marsupialization can also be done which involves making an incision, draining and sewing the edges of the fibrous tract of the edges of the wound making a pouch. This will minimize the size and depth of the wound, but the problem is it takes longer to heal. Immediate closing of the wound after incision and drainage can also be done, but there is a higher rate of recurrence with this treatment option. Follow up is important to check if it is healing properly and make sure the wound is clean and free of infection.
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Precaution and Self Care
Never try to drain the pilonidal cyst yourself since this can cause infection. In many cases, the cyst will go away on its own when you keep it clean and avoid friction. You many need to use cycling shorts or other clothing that minimizes friction in the affected area. After getting treatment, keep the area clean and follow the instructions of your physician to prevent infection and recurrence. Never take antibiotics that are not prescribed by a physician.
In preventing pilonidal cysts, you need to: