science and discovery | May 04, 2026

Is pilonidal sinus dangerous?

While the cyst is not serious, it can become an infection and should therefore be treated. When a pilonidal cyst gets infected, it forms an abscess, eventually draining pus through a sinus. The abscess causes pain, a foul smell, and drainage. This condition is not serious.

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Similarly, what happens if a pilonidal sinus goes untreated?

If left untreated, the cyst can drain pus or other fluids, or develop a pilonidal sinus, which is an opening that grows under the skin from the hair follicle. Some of the most common symptoms of a pilonidal cyst infection include skin reddening, pain, and draining of blood or pus.

Furthermore, can a pilonidal sinus heal on its own? A problem called a chronic pilonidal sinus can happen after an abscess has been drained. The problem with the sinus is that it can lead to repeated infections. The sinus connects to the skin with one or more small openings. In some cases the sinus may heal and close by itself, but usually the sinus has to be cut out.

Hereof, is pilonidal sinus cancerous?

Pilonidal disease is a common disease. A malignant change rarely occurs and happens only when the disease is of long duration. Predisposing factors are low immunity and infection with human papillomavirus. The first case of squamous cell carcinoma arising in pilonidal sinus was published in 1900.

Is pilonidal sinus common?

A pilonidal sinus is a small hole or tunnel in the skin, usually at the top of the cleft between the buttocks. In some people dents (small depressions) in the skin develop naturally in this area. Pilonidal sinuses are most common in young adults and are rarely seen in children or people over 40 years old.

Related Question Answers

How can I treat pilonidal sinus at home?

Pilonidal Cyst Home Treatment
  1. Shave around the cyst area, if your doctor approves, to keep hairs from becoming embedded.
  2. Clean the area with mild soap and water.
  3. If you need to sit for long periods, take frequent breaks.
  4. Avoid wearing tight clothing, as hair can be forced down into the skin.

How can I drain my pilonidal sinus at home?

Try applying a hot, wet compress to the cyst a few times a day. The heat will help pull out the pus, allowing the cyst to drain. This can relieve pain and itching. You might also try soaking the area in a warm, shallow bath.

What is the best treatment for pilonidal sinus?

Treatment for pilonidal cysts involves incision and drainage (I&D) or surgery. Home remedies include sitz baths and some vitamin supplements. The prognosis for a pilonidal cyst is generally good. Recurrences are common.

Why does pilonidal sinus occur?

Causes of pilonidal sinus A skin problem, pressure or friction may cause hair between the buttocks to be pushed inwards. This may either be hair growing around the buttock area, or loose hair shed from the buttocks or elsewhere that gathers around the buttock cleft and enters the pilonidal sinus.

How can I stop my pilonidal cyst from coming back?

Keep the area clean and dry, and either shave or use depilatory creams to keep the area free of hair. Also, try to avoid prolonged sitting or excessive repetitive pressure to the area of the coccyx (tailbone). Weight loss in obese individuals may also help decrease the development and recurrence of pilonidal disease.

Can pilonidal sinus cause back pain?

Signs and symptoms include pain over the lower spine, skin redness, warmth and swelling with drainage of pus; a few patients may develop fevers. However, if the pilonidal cyst becomes infected, the following signs and symptoms may develop: Pain over the lower spine.

Can you die from pilonidal disease?

The patient died after two years. This case study illustrates that since SCC is a fatal complication of recurrent and long-standing pilonidal sinus, the proper treatment of this disease should be carried out as soon as the diagnosis is established.

How long does it take to recover from pilonidal sinus surgery?

In general, it'll probably take anywhere from one to three months to completely heal. Most people can resume their regular activities two to four weeks after surgery. You may experience some pain or tenderness during the recovery process.

Can you get cancer from pilonidal cyst?

If a chronically infected pilonidal cyst isn't treated properly, you may be at slightly increased risk of developing a type of skin cancer called squamous cell carcinoma.

What is pilonidal sinus surgery?

What is pilonidal sinus surgery? Treatment of a pilonidal sinus involves making a small surgical incision to open it and to allow the pus to drain away. If a pilonidal sinus keeps becoming infected, you may be recommended to have surgery to remove the sinus and to prevent further infections.

What antibiotics treat pilonidal cyst?

Wound infection should be treated with broad spectrum antibiotics, such as metronidazole and erythromycin, for at least two weeks depending upon response. Chronic pilonidal sinuses are best treated with wide excision and secondary healing. Long-term recurrence is reduced by good hygiene and regular depilation.

Is pilonidal cyst surgery painful?

Pilonidal sinus surgery is not typically painful compared with other anorectal procedures. There can be some pain. In addition to pain medication there are local measures that can be helpful. They are not important for healing and can be stopped when you don't think they are useful.

Can pilonidal sinus be treated with antibiotics?

A pilonidal cyst is an abscess or boil. Treatment may include antibiotics, hot compresses and topical treatment with depilatory creams. In more severe cases it needs to be drained, or lanced, to heal. Like other boils, it does not get better with antibiotics.

Can pilonidal cyst make you feel sick?

You may notice cloudy or bloody fluid draining from the affected area. This fluid may be foul smelling. The area may look red and feel tender. Other symptoms of pilonidal disease can include nausea, fever, and extreme tiredness.

Can a pilonidal cyst cause leg pain?

When they do cause symptoms, however, one of the most common is pain in the lower back, buttocks, or legs. This occurs in rare cases when the cysts become enlarged with spinal fluid and press on nerves. Only surgery can keep them from coming back or refilling with fluid and producing symptoms again.

Can you get sepsis from pilonidal cyst?

Chronic pilonidal disease is often regarded by surgeons as relatively trivial, but it causes prolonged and troublesome sepsis for a group of patients who are young and physically active.

How common are pilonidal cysts?

Pilonidal cysts occur more frequently in men than in women, and they are more common in Caucasians than in other racial groups. Pilonidal cysts usually occur between the ages of 15 to 24, and their development is uncommon after the age of 40.

How do you sit after pilonidal sinus surgery?

Activity
  1. Rest when you feel tired.
  2. Try to walk each day.
  3. Shower as usual.
  4. Ask your doctor when you can drive again.
  5. Avoid sitting for a long time or sitting on hard surfaces until your incision has healed.
  6. Most people are able to return to work within 2 to 4 weeks after surgery.

How do you pronounce pilonidal sinus?

Pilonidal (say "py-luh-NY-dul") disease is a chronic skin infection in the crease between the buttocks.