Pustule

About the Symptom

Pustule is a small, inflamed sore on the skin surface typically containing yellowish fluid that can contain bacteria or inflammatory cells.

When to See a Doctor

Seek professional care if you experience any of the following symptoms

• Lumps containing pus

Possible Causes

Generally, Pustule can be related to:

• Subcorneal Pustulosis

  Subcorneal pustulosis is a skin condition where non-infected, pus-filled pustules or blisters form on the skin, especially in areas where the skin rubs together. The cause is unclear but may be linked to other systemic conditions or certain medications. It is not contagious or inherited. Adult women are at higher risk, but children can develop this condition too.

• Acute Generalized Exanthematous Pustulosis (AGEP)

  AGEP is a severe reaction, often caused by drugs, that appears as numerous small pustules on the skin with swelling and redness. It usually starts on the face and can spread to the trunk and limbs. The reaction often begins a few hours to days after taking the offending drug, most commonly antibiotics, antifungals, and antimalarials.

• Eosinophilic Pustular Folliculitis

  Eosinophilic pustular folliculitis is a chronic, non-infectious skin disorder characterized by recurring itchy, red or skin-colored bumps and pustules. The bumps mostly appear on the face, scalp, neck and trunk and may persist for weeks or months. It may be associated with HIV infection, various drugs, and some lymphomas.

• Pyoderma Gangrenosum
• External Dental Fistula
• Hidradenitis Suppurativa
• Pyogenic Granuloma
• Pustular Psoriasis
• Impetigo

Related Serious Diseases

Sometimes, Pustule may be related to these serious diseases:

• Perianal Abscess

  A buildup of pus near the anus, more common in patients with diabetes, obesity, or certain conditions causing gut ulcers.

Doctor's Diagnostic Questions

Your doctor may ask these questions to check for this symptom:

• Do you have pus-filled blisters or bumps on your skin?
• When did you first notice pus-filled blisters or bumps on your skin?
• How often do you experience pus-filled blisters or bumps on your skin?
• How are your pus-filled blisters or bumps on the skin now?
• Do you have any pus-filled blisters in your armpit?

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