Have you ever noticed a small, red bump that seemed to appear out of nowhere—and then started bleeding easily? You’re not alone. Many people are surprised to learn that these harmless-looking growths might be a pyogenic granuloma, a common type of benign vascular lesion.

Despite their dramatic appearance, pyogenic granulomas are non-cancerous and often develop in response to irritation or minor injury. Understanding where they typically appear—on the skin, in the oral cavity, and on mucosal surfaces—can help ease anxiety and guide timely medical advice.

In this article, we’ll explore the most common locations of pyogenic granulomas, explain why they develop, and help you recognize when they might require treatment.

Let’s start by understanding what a pyogenic granuloma actually is—and why the name is more confusing than it sounds.

What is a Pyogenic Granuloma?

Pyogenic granulomas (PG) are relatively common, but many cases go unreported, making it difficult to determine their true prevalence. These abnormal tissue growths typically appear on the skin and the moist inner linings of body cavities, particularly in the mouth. They are also known as granuloma pyogenicum and Lobular capillary hemangioma, though both terms refer to the same type of abnormal tissue growth.¹

The term "pyogenic" refers to the formation of pus in a medical context, while "granuloma" describes a mass of tissue that arises as a response to infection. Despite its name, a pyogenic granuloma is not associated with infection or pus. Instead, it is a vascular growth on the skin due to an overgrowth of blood vessels, and it cannot be transmitted from person to person. Additionally, granulomas pose no risk of cancer. 

What causes pyogenic granulomas?

Most PGs occur for no reason. Some appear after a minor injury or due to a foreign material entering the skin, such as stitches or a splinter.  The immune system believes it cannot destroy something it sees as potentially harmful to the body, thus resulting in the formation of the granuloma. PGs have also been associated with hormonal changes.³ It has been documented that PGs of the gingiva occur in up to 5 per cent of all pregnancies.²

Appearance

• A bump that is noticeable and protruding
• Size variation-  generally ranges from 0.5 to 2 cm, but has the potential to grow larger and may do so rapidly
• Typically singular - it usually appears as a single lesion
• Bright red, making it stand out on the skin.Smooth and even shiny appearance
• Irregular surface like a raspberry
• Prone to bleeding- can bleed easily upon minor trauma
• The most common sites are fingers and the face
• Oral PGs normally develop on the lips and gums

A PG starts as a lesion with a rapid growth period that usually lasts a few weeks. It then stabilises into a raised, reddish nodule that’s typically smaller than two centimetres. The lesion can appear smooth, or it might have a crusty or rough surface, particularly if it bleeds a lot.

Pyogenic Granuloma on skin

Pyogenic granulomas are benign, rapidly growing vascular bumps that typically appear on the skin or mucous membranes. They usually present as small, shiny lumps ranging in colour from bright red to purple, with an irregular surface resembling a raspberry. As they mature, the colour of the granuloma may transition to a paler pink.⁴ While pyogenic granulomas are generally painless, they can bleed easily if bumped. These growths can occur on various parts of the body, such as:

• face
• eyelids
• scalp
• neck
• hands
• fingers
• arms
• legs
• chest
• back

One reason these granulomas are thought to occur is due to trauma. This may explain why they are commonly found in areas of the body that are often exposed to various forms of trauma. Trauma can include not only obvious knocks and bumps but also less obvious injuries such as insect bites and burns. As a result, some of the most frequent sites of occurrence are those that are easily subjected to these types of trauma.

Oral Pyogenic Granuloma

PGs can also grow in the oral cavity (mouth), including lips, inner cheeks, gums and tongue. Depending on where they appear in the mouth, they can often cause difficulties with normal functions such as eating and speaking. Oral hygiene practices can also be disrupted as they can hinder access to some areas of the mouth.

Oral PGs can occur across a wide age range, including children and older adults, with a higher prevalence in women, particularly during pregnancy and puberty.⁵ Due to this association with pregnancy, oral PGs are often termed “pregnancy tumours” as an unofficial term.

The exact cause of Oral PG is unclear, but it may result from:

• Trauma or irritation (e.g., tooth brushing, dental biofilm, poorly functioning restorations, braces or false teeth)⁵
• Hormonal changes are often associated with pregnancy and puberty (increased levels of estrogen and progesterone)^2,3,9
• Medicinal side effects (e.g., calcineurin inhibitors, retinoids, antiretrovirals)^5,8
• Bacteria associated with insect bites (Bartonella bacteria)^5,9
• Imbalance in angiogenesis regulators (e.g., VEGF and bFGF)^5,6

Angiogenesis regulators are substances in your body that act like traffic signals for blood vessel growth. Some tell the body to build new blood vessels (promoters), while others instruct it to slow down or stop that process (inhibitors). This balance is crucial for healing wounds, growing tissues, and plays a role in the formation of PGs.^5,6,7

Appearance of oral PG

• Oral pyogenic granulomas share similarities with skin lesions
• They are red due to a high concentration of blood vessels
• They tend to bleed easily
• They exhibit a lobulated, raspberry-like appearance
• They develop rapidly and are often linked with inflammation or irritation

Mucosal Pyogenic Granuloma beyond the mouth

The body's sensory organs, including the digestive tract, respiratory system, and reproductive organs, are lined with a protective layer known as the mucous membrane, or mucosa. This specialised membrane plays a crucial role in various functions, particularly absorption and excretion, which are essential for maintaining homeostasis and overall health. 

Other mucosal surfaces where mucosal PGs have been reported include the nose, genitals and conjunctiva.

Nasal cavity PG

• Unknown triggers, but associated with pregnancy, hormonal changes, side effects of some medications, and trauma (e.g., nose piercings or surgery)¹⁰
• Nasal PGs often start from the bony structures dividing the nostrils (nasal septum) and can extend into the front part of the nose or toward the throat^13.14
• They may present as fleshy, multiple small masses attached to the nasal septum from a stalk, potentially causing blockage in one nostril or frequent nosebleeds^13,14

Genital PG

• Genital PGs are rare vascular bumps that can occur on the vulva, penis, or other genital areas^15,16
• Vulvar PGs are associated with hormonal changes and have been reported in both premenopausal and postmenopausal women^15,16
• They present as bright red vascular bumps with a lobulated, raspberry-like surface and may appear smooth or ulcerated. They can range in size from a few millimetres to several centimetres in diameter^4,15,16
• These lesions bleed easily and profusely with minor trauma, often prompting medical attention^4,16
• Genital pyogenic granulomas can sometimes be confused with other conditions like genital warts, hemangiomas, or cancerous lesions, making professional examination essential for accurate diagnosis^15,16

Eye (Conjunctiva) PG’s

• The conjunctiva is the mucosal membrane covering the inner surface of the eyelid and the white part of the eyeball.
• PGs can form on the conjunctiva and, on rare occasions, involve the sclera or cornea^17,18
• Conjunctiva PGs develop quickly, grow rapidly, are fragile, and bleed readily upon trauma^17,18
• While usually painless, larger lesions may cause a sensation of dryness or irritation^17,18

Diagnosis and When to Seek Medical Advice

If you discover any marks or bumps on your skin that are getting larger or are bleeding, you should seek medical advice to confirm a diagnosis and discuss treatment. If confirmed as a PG and treatment is not carried out, you may want to keep the growth covered. Keeping it covered will prevent trauma prevent the possibility of infection. 

Increasing pain and soreness from the growth may indicate an infection, which will need medical attention. 

Treatment of Pyogenic Granulomas

Pyogenic granulomas (PGs) are tiny, red, sometimes rapidly developing lumps on the skin or mucous membranes that bleed easily. Though they are not cancerous, they can be bothersome, especially if they bleed often or interfere with your appearance.

Treatment depends on the size and location of the PG, and sometimes no treatment is needed at all.

Skin PGs

When Treatment Is Not Necessary

• Small PGs typically clear on their own without the intervention of medicine.

Treatment for Big or Recurring PGs

• Excision (cutting out)- The PG is cut out under local anaesthetic
• Cauterisation-  A common treatment in which heat or chemicals are used to kill the PG and stop bleeding. This can also stop it from recurring¹⁹
• Silver nitrate application- A physician directly applies it to the PG in order to assist in preventing bleeding and healing. It's quick and painless²⁰
• Laser removal- An effective means of removing the PG with minimal damage to the surrounding skin

Avoid Picking or Self-Removal

• Pick at PGs at your peril: It causes heavy bleeding and could cause infection. Have them always removed by a skilled professional using proper equipment.

At-Home Salt Treatment

A few have had success with salt treatment, though not a doctor-recommended method:

• Place petroleum jelly on the surrounding skin to cover
• Put table salt directly onto the PG
• Repeat every day. After a while, the salt can dry out the PG and cause it to shrink
• You may feel a slight burning sensation at first

Important: Always see your doctor before trying any home treatment.

Eye (Conjunctival) PGs

Steroid ointments can be used to reduce inflammation.

If necessary, the PG can be surgically removed by an eye specialist.

Nasal PGs

Treatment can be corticosteroid creams or surgery, depending on the size and symptoms.²¹

Genital PGs

Depending on where they are found, treatment can involve:

• Prescription ointments
• Cauterization
• Laser removal
• Surgical removal

PGs During Pregnancy

• PGs occasionally occur as a result of hormonal fluctuations
• If pregnant, your physician might recommend watching and waiting, since PGs tend to resolve after delivery
• Treatment choices will always favour the safety of the baby

If you are worried or unsure about a growth

• See your doctor for a diagnosis
• They can confirm it's a PG and help you choose the most suitable treatment for your personal needs and preferences

Remember

PGs are usually harmless, but you don't have to put up with the annoyance or trouble they cause. Help is available—and in the majority of cases, it's quick and straightforward.

Summary

• Pyogenic granuloma (PG) is a benign, non-cancerous vascular lesion that appears as a small, red bump which bleeds easily when touched
• Also known as granuloma pyogenicum or lobular capillary hemangioma, the term “pyogenic” is misleading as these lesions do not produce pus¹

Causes and Contributing Factors

• Often develops in response to minor injury or irritation (such as trauma, insect bites, or burns)
• Hormonal changes (notably during pregnancy and puberty) are a common trigger, with up to 5% of pregnancies showing gingival PGs^2,3
• Imbalances in angiogenesis regulators (like VEGF and bFGF) also contribute to the formation of PGs^5,6,7

Treatment and Management

• Skin PGs: These may resolve on their own if they are small; larger lesions can be treated by slicing off, cauterisation (including silver nitrate application), laser removal, or surgical removal^19,20
• Oral, Nasal, Genital, and Conjunctival PGs: Treatments may involve corticosteroid ointments or surgical removal, depending on the location and severity
• In cases like pregnancy-associated PGs, treatment may be delayed as lesions can resolve with no treatment after delivery

When to Seek Medical Advice

If a lesion is growing, bleeding, or causing discomfort, it’s advisable to get a professional diagnosis to rule out other conditions and discuss appropriate treatment options.