The pilonidal fistula , also known as the hairy fistula , is a sac filled with falling hair and dead skin formed in the coccyx area, which is an area located in the lower back, and this cyst may be accompanied by some blood secretions and be very painful.

 

Causes of pilonidal sinus disease:

Sitting for long periods of time and in the wrong manner.

Increasing hair density, especially in the back area, increases the risk of developing a pilonidal sinus.

The combination of dead skin cells and hair falling out in the presence of bacteria leads to a coccygeal fistula.

Penetration of hair into the skin.

Skin-to-skin contact.

Wearing tight clothes that increase skin friction.

Exposure to injuries or accidents in this place increases the possibility of injury.

Weight gain also increases skin friction with clothes, and it also increases skin-to-skin friction, especially at the buttocks area, and thus increases the chances of this cyst collecting.

 

Symptoms of pilonidal sinus:

Skin irritation, discomfort and severe pain in the lower back area, especially when sitting or moving.

Severe sensitivity of irritated and inflamed skin with severe itching in the affected area.

As a result of severe itching, the skin is opened and blood accompanied by foul-smelling pus comes out from the opening of the fistula.

The appearance of swelling and redness in the pilonidal area.

Secretions appear from inside the pilonidal sinus.

Constipation.

Feeling severe pain during bowel movements. 

It may be accompanied by a high temperature.

 

Ways to prevent a pilonidal sinus:

Regular personal hygiene, especially for that area, to prevent the formation of bacteria in it.

Avoid sitting for long periods and avoid sitting wrongly.

Losing excess weight.

Avoid wearing tight clothes.

Periodically removing hair from its roots and not from the surface only in that area using hair removal products or lasers.

 

Pilonidal sinus treatment:

There are no medications or ointments for the treatment of pilonidal sinuses, as some claim, but the pilonidal sinus is only treated by one of the following methods:

1- The surgery:

- They are, the doctor begins to anesthetize the patient with a local anesthetic in the affected area, then open the site of the injury and clean the cyst from the inside.

- After that, the doctor leaves the wound open and puts a wick in the wound from the inside, which is changed on a daily basis for a specific period of time.

In addition to that, the doctor recommends that the patient take some antibiotic drugs in order to speed up the wound healing process, and to ensure that the fistula does not return again, the wound is closed after the cyst is cleaned.

 

2- Laser moxibustion:

Here, the doctor gets rid of the damaged tissues, and is through local anesthesia, and ensures that there are no residues of the fistula, and the wound does not require a long time to heal.

 

Complications of Pilonidal Sinus:

- Complications do not occur after the operation except in the absence of interest in cleaning the wound after the operation, especially in cases of open wound, which may lead to microbial contamination that may cause a delay in the completion of the healing process and wound healing.

- It may also lead to the formation of an abscess from blood clusters as a result of infection in the wound, which is always accompanied by increased pain after the operation and may eventually lead to the formation of a new fistula, which requires another operation for excision.


Resources:

1- https://my.clevelandclinic.org/health/diseases/15400-pilonidal-disease/management-and-treatment

2- https://www.webmd.com/skin-problems-and-treatments/guide/pilondial-cyst#1

3- Ambulatory Anorectal Surgery Book