Pilonidal Sinuses - CMC

Related Services

الخدمات ذات الصلة

General Surgery Colorectal Surgery / Proctology

Pilonidal sinuses (PNS) are small tunnels in the skin that fill with either fluid or pus, which result in the formation of a cyst or abscess. The condition normally occurs in the cleft at the top of the buttocks, and contains hair, dirt, and debris. Pilonidal sinuses usually occur in males, who are mostly young adults.  

Causes of Pilonidal Sinuses 

Currently, there is no exact known cause of pilonidal sinuses, however, their occurrence is attributed to a combination of changing hormones (this is because it happens after puberty), hair growth, and friction from clothes. Sitting for long periods is also attributed to causing the sinuses. 

In most cases, activities that facilitate friction like sitting can force hair growth in the area that barrows back under the skin. With this, the body considers this as foreign and as a result the immune system tries to fight it. It is this immune response that forms the cyst around an individual’s hair.  

Symptoms of Pilonidal Sinus 

Common signs and symptoms of Pilonidal sinuses include:

  • Reddened and sore skin around the area 
  • Hair protruding from the lesion 
  • Pain when sitting or standing 
  • Pus or blood draining from the abscess leading to foul odor 
  • Formation of more than one sinus tract or holes in the skin 
  • Swelling of the cyst 
  • The patient may also experience low-grade fever, however, this is much less common 

Complications of Pilonidal sinuses

Some of the complications that are experienced as a result of pilonidal sinuses include: 

  • Fever 
  • Inflamed and swollen skin 
  • Severe pain on the area 
  • Blood and pus seeping from the wound site 
  • Foul odor emanating from the wound 

Treatment of Pilonidal sinuses 

Conservative Treatment 

If the condition is diagnosed early, the patient may not be experiencing severe pain hence minimal chances of inflammation. In this situation, the doctor will prescribe a broad-spectrum antibiotic which is normally meant to treat a wide range of bacteria. 

This approach may not treat the sinus tract but will relieve the patient from the infection and discomfort. The doctor will recommend that the patient gets a follow-up exam. 


This is a procedure that alleviates symptoms of an abscess, or a collection of pus inside the sinus. The doctor administers local anesthesia before the procedure. By using a scalpel, the doctor opens the abscess, cleans any blood, hair, and pus from it. 

Afterwards the wound is dressed and allowed to heal from inside out. Normally the wound heals in a matter of weeks. 

Phenol injection 

During the procedure, the doctor administers local anesthesia and then injects phenol into the cyst. Phenol is a chemical compound used as an antiseptic. The prime objective of this treatment is to cause the lesion to harden and close thus the procedure may need to be repeated several times. 


Surgery is recommended for patients with a recurring PNS. During the surgery, which is done under local anesthesia, the surgeon opens the lesion to remove all the pus and debris. Upon completion of this procedure, the wound is sutured closed, then dressed. 


An anal fissure is a small tear or cut in the lining of the anus, often caused by passing hard stools.

The symptoms of an anal fissure include pain during bowel movements, itching or burning around the anus, and small amounts of bright red blood on the toilet paper after wiping.

Treatment for an anal fissure typically involves lifestyle changes, such as eating a high-fiber diet and drinking plenty of water, as well as using over-the-counter medications to relieve pain and discomfort. In some cases, surgery may be necessary.

The recovery time after anal fissure surgery varies depending on the extent of the procedure, but typically involves a few weeks of recovery time at home. Patients are usually advised to avoid strenuous activity and to follow a high-fiber diet to help promote healing.

Start chat
Chat with us
I’d like to book an appointment