Pilonidal Cyst — Symptoms, Causes and Treatment Methods (Surgery, Laser)

Informational article. If you are looking for treatment in Gdańsk, go directly to the treatment page (link below).

A pilonidal cyst — also known as a pilonidal sinus — is a chronic, recurrent lesion in the coccyx area. It may sound harmless, but it can cause many problems if left untreated. In this guide, we explain what it is, how it manifests, what it may be confused with and why it tends to recur.

What is a pilonidal cyst?

A pilonidal cyst is a lesion that most often develops in the upper part of the natal cleft, near the coccyx. It forms when hairs grow into the skin, causing inflammation and creating a cyst or fistula. Hair, sebum, dead skin cells and sometimes pus may accumulate inside it — hence the pain and discomfort.

It mainly affects young adults, more often men aged 15–35, although it can also occur in women. Risk factors include a sedentary lifestyle, excess weight, excessive hair growth and repeated trauma to the area, such as prolonged sitting or cycling.

Why is it a recurrent condition?

The most important thing to understand is this: a pilonidal cyst tends to recur. Even after the symptoms subside, the problem may return because the underlying causes remain the same — ingrown hairs and irritation of the area. That is why simply “waiting out” an acute episode or using home compresses does not solve the problem: these methods may relieve symptoms, but they do not remove the cause.

For this reason, treatment is not only about removing the lesion but also about preventing recurrence, including hair removal in the area and proper hygiene, which we discuss below.

Symptoms — what should you pay attention to?

For some time, a pilonidal cyst may cause no symptoms, but once it becomes active, it is difficult to ignore. The most common symptoms include:

• pain and discomfort in the coccyx area, especially when sitting and moving,
• redness and swelling in the upper part of the natal cleft,
• discharge of pus or blood-stained fluid, sometimes with an unpleasant smell,
• a palpable lump under the skin,
• fever in advanced inflammation or abscess formation.

At first, it may appear as a small, painless lump. Over time, the inflammation increases — and the longer we wait, the greater the risk of complications.

What can it be confused with?

Because of its location, a pilonidal sinus can easily be confused with other conditions, which may delay diagnosis:

• abscess – when inflamed, the cyst may look similar, but an abscess is not necessarily related to ingrown hairs,
• anal fistula – it has a different source location and requires different management,
• folliculitis – it may resemble an early stage, but it does not form fistulas or cysts,
• minor skin lesions – lumps or pimples that can only be differentiated during examination.

That is why the diagnosis should always be confirmed by a surgeon dealing with proctology — supplemented with ultrasound if necessary.

Why should it not be ignored?

An untreated pilonidal cyst may lead to:

• chronic, recurrent inflammation,
• abscesses requiring urgent intervention,
• fistulas — difficult-to-heal channels under the skin,
• rare but serious complications in cases of very long-neglected lesions.

To put it simply: a cyst is a bit like an unwelcome guest — the sooner you deal with it, the less trouble it will cause.

What does treatment look like? In brief

Treatment is always selected individually and preceded by a qualification visit. Depending on the stage of the condition, conservative management, incision and drainage of an abscess, surgical treatment or minimally invasive methods such as the SiLaC laser may be used.

Details of each treatment method, recovery time, prices and appointment booking are described on the treatment page:

See treatment methods and book an appointment →

Recovery — general rules

Recovery depends on the type of procedure. If the wound is sutured, healing usually takes 2–4 weeks; if the wound heals openly, by secondary intention, it takes longer. In the first days, wound hygiene and following medical recommendations are important. The most common recommendations include:

• avoiding prolonged sitting in the first days,
• washing the wound in the shower, but avoiding prolonged soaking, such as in a bathtub or swimming pool,
• regular dressing changes and follow-up visits,
• returning to light activity after 1–2 weeks, and to sport later.

How can recurrence be prevented?

Recurrence is the biggest challenge. The risk of the lesion returning can be reduced by:

• hygiene of the coccyx area,
• hair removal in the natal cleft, for example laser hair removal,
• avoiding prolonged sitting and changing position frequently,
• maintaining a healthy body weight.

These measures do not provide a 100% guarantee, but they significantly reduce the risk of recurrence.

This article is for informational purposes only and does not replace a medical consultation. Diagnosis, qualification and the choice of treatment method are determined by the doctor during the visit.