Pilonidal sinus, commonly known as pilonidal cyst, is a condition that occurs in the sacrococcygeal area, that is, in the lower back, just above the crease of the buttocks. Although not a widely known term, this condition can cause significant discomfort and, if not properly treated, can lead to complications.
From Innova Cirugía, we will explore in detail what is pilonidal sinus, its causes, symptoms, diagnosis and treatment options.
What is Pilonidal Sinus?
Pilonidal sinus is a cyst that forms in the skin, usually at the top of the buttock crease. It develops when hairs become embedded in the skin or when a combination of hair, skin and tissue accumulates in a small passage or sinus. This cyst may contain fluid, pus and sometimes hair, causing pain and discomfort.
Characteristics of Pilonidal Cyst
The characteristics of pilonidal cyst are as follows:
- Location: Commonly found in the lower back, but can also appear in other areas of the body.
- Contents: May contain hair, skin and fluids, making it an infection-prone environment.
- Inflammation: The affected area may become inflamed, red and have discharge, especially if infected.
Causes of Pilonidal Sinus
The causes of pilonidal sinus are not completely understood, but there are several factors that may contribute to its development.
1. Infection or Irritation
Chronic irritation to the skin in the sacrococcygeal region can lead to the formation of a pilonidal sinus. This irritation can be caused by friction, excessive sweating or prolonged pressure on the area.
2. Body Hair Growth
Ingrown hairs are one of the main causes of pilonidal sinus. When body hair gets into the skin, it can cause inflammation and cyst formation.
3. Genetic Factors
Some people have a genetic predisposition to develop pilonidal sinuses. If there is a family history of this condition, it is more likely that an individual will also develop it.
4. Lifestyle
Lifestyle can influence the occurrence of pilonidal sinus. People who spend a lot of time sitting, such as drivers or office workers, are at greater risk due to the constant pressure in the area.
Symptoms of Pilonidal Sinus
The symptoms of pilonidal sinus can vary in intensity and can bring about the following ailments.
Pain and Discomfort
The most common symptom is pain in the affected area, which may be sharp or dull. This pain may be intensified by sitting, lifting or physical activity.
2. Swelling and Redness
The skin around the cyst may become inflamed, red and warm to the touch. This is a sign of inflammation that may indicate an infection.
3. Secretion
In some cases, there may be a discharge of pus or fluid from the cyst, which often has an unpleasant odor. This is usually a sign of infection and requires medical attention.
4. Abscess formation
If the cyst becomes infected, an abscess may form, which can increase pain and cause fever. In this case, it is essential to seek immediate medical attention.
Diagnosis of Pilonidal Sinus
The diagnosis of a pilonidal sinus is usually made through a physical examination. The physician will evaluate the affected area, review the symptoms and, if necessary, perform additional studies, such as ultrasounds, to determine the extent of the cyst.
Medical Evaluation
During the consultation, the doctor will ask you about your symptoms, medical history and any previous treatment. This information is crucial to make an accurate diagnosis.
Pilonidal Sinus Treatment
Treatment of pilonidal sinus depends on the severity of the condition and may include the following.
Medication
In cases of mild infection, antibiotics may be prescribed to treat the infection and reduce inflammation. Analgesics may also help relieve pain.
2. Cyst Drainage
If the cyst has developed into an abscess, it may be necessary to drain the accumulated contents. This procedure is usually performed under local anesthesia and can provide immediate pain relief.
3. Surgery
For recurrent or more severe cases, surgery may be the best option. The procedure involves complete removal of the cyst and surrounding tissue to prevent recurrence. The surgery is performed under general anesthesia and may require some recovery time.
4. Postoperative Care
After surgery, it is essential to follow the doctor’s instructions to ensure proper recovery. This may include dressing changes, taking antibiotics and avoiding activities that may irritate the area.
Pilonidal Sinus Prevention
Although pilonidal sinus cannot always be prevented, there are some measures that can help reduce the risk of developing it:
- Keep the area clean and dry: Proper hygiene is essential to prevent infection.
- Avoid friction: Wearing loose, comfortable clothing can help minimize irritation to the area.
- Control body hair: Consider hair removal methods that reduce ingrown hair.
- Change position frequently: For those who spend a lot of time sitting, getting up and moving regularly can help reduce pressure in the sacrococcygeal region.
Where to treat pilonidal sinus?
Pilonidal sinus is a condition that can cause significant discomfort and affect the quality of life of those who suffer from it. Recognizing its causes and symptoms is crucial to seek appropriate treatment and prevent complications.
If you experience pain or discomfort in the sacrococcygeal area, it is important to consult a healthcare professional for early diagnosis and treatment. With proper care, it is possible to manage this condition and improve your quality of life.
So, if you suffer from pilonidal sinus, wait no longer. At Innova Cirugía we offer you innovative and effective treatments. Contact us today for an evaluation and start your recovery with the best aesthetic results, your well-being is our priority!



