A pyogenic granuloma is a small, benign growth made up of blood vessels that appears on the skin or mucous membranes. Despite its name, it isn’t caused by infection (pyogenic means “pus-producing”) and isn’t technically a granuloma in the pathological sense. Doctors sometimes call it a lobular capillary hemangioma, which more accurately describes what it is: a cluster of tiny blood vessels that forms a raised, often bright red bump. These growths are harmless but tend to bleed easily and profusely, which is usually what sends people to a doctor.
What It Looks and Feels Like
Pyogenic granulomas typically appear as small, round, raised bumps ranging from a few millimeters to about a centimeter across, though some grow larger. They’re usually bright red, reddish-brown, or dark red because of the dense network of blood vessels inside. The surface can look smooth and shiny or slightly raw and crusty, especially if the growth has been bumped or irritated. Many sit on a narrow stalk, giving them a mushroom-like shape.
The hallmark feature is how much they bleed. Even minor contact, like catching it on clothing or brushing against it while washing, can trigger bleeding that seems out of proportion to the size of the bump. They don’t usually hurt, though they can feel tender. The most common locations are the fingers, hands, face, and lips, but they also appear inside the mouth (especially on the gums), on the trunk, and on the feet.
Who Gets Them
Pyogenic granulomas are most common in children around age 6, teenagers, and young adults. Overall, males are affected more often than females at a ratio of roughly 3 to 2. The exception is oral pyogenic granulomas, which are more common in women because of their strong association with pregnancy and oral contraceptive use.
During pregnancy, hormonal changes can trigger these growths on the gums, a variant sometimes called granuloma gravidarum. About 3% of women who develop oral changes during pregnancy will get one. The upper gum line is the most frequent spot, followed by the lips, tongue, and inner cheeks. The good news is that these pregnancy-related growths usually shrink and resolve on their own after delivery, unless other factors like orthodontic hardware keep irritating the tissue.
Common Causes and Triggers
The exact mechanism behind pyogenic granulomas isn’t fully understood, but several triggers are well established. Minor skin trauma is the most common one. A small cut, a scratch, a bug bite, or even a splinter can set off the rapid overgrowth of blood vessels at the injury site. This is part of why children, who are constantly getting minor scrapes, develop them so frequently.
Hormonal shifts, particularly the elevated estrogen and progesterone levels during pregnancy, are another major trigger. Certain medications can also cause them, including retinoids (used for acne and other skin conditions), some immune-suppressing drugs, and protease inhibitors. In many cases, though, no obvious trigger can be identified.
How It’s Diagnosed
A doctor can often identify a pyogenic granuloma by its appearance alone: the characteristic red color, the tendency to bleed, and the typical locations are strong clues. However, because a few other conditions can look similar, a biopsy is sometimes recommended. This is especially important because a type of skin cancer called amelanotic melanoma, which lacks the dark pigment people associate with melanoma, can mimic the appearance of a pyogenic granuloma. Removing the growth and sending it for microscopic analysis rules out anything concerning and confirms the diagnosis at the same time.
Treatment Options
Pyogenic granulomas don’t resolve on their own in most cases (pregnancy-related oral lesions being a notable exception). Because they bleed so easily and can be cosmetically bothersome, most people choose to have them removed. Several approaches work well.
Surgical Removal
The most common method is surgical excision, where the growth is cut out along with a small margin of surrounding tissue. This approach has the lowest recurrence rate of the surgical options, at roughly 3%. Curettage, which involves scraping the growth away and then sealing the base with heat (cauterization), is another effective option. A review of over 1,100 treated pyogenic granulomas found no significant difference in recurrence between excision and cauterization. Laser treatment can also destroy the abnormal tissue and is sometimes preferred for growths in cosmetically sensitive areas like the face.
Topical Treatments for Children
For children, topical beta-blocker therapy has become a first-line option because it avoids the need for a procedure. A gel or ointment containing a beta-blocker is applied directly to the growth over a period of weeks to months. These medications work by slowing the growth of blood vessels and gradually shrinking the lesion. A prospective study of 22 children treated with a topical beta-blocker ointment found complete resolution in 59% of cases at an average of 66 days, with no recurrences at two-year follow-up. Some cases resolve faster, with certain reports documenting clearance in as little as three weeks.
The treatment timeline is longer than surgery, but the tradeoff is a painless, non-invasive approach with minimal scarring, which matters when the growth is on a child’s face or hands.
Recurrence After Treatment
One of the frustrating aspects of pyogenic granulomas is that they can come back, sometimes even growing as multiple smaller lesions around the original site. A large review covering 19 different treatment methods found 53 recurrences out of 1,162 treated growths. Surgical excision and cryotherapy (freezing) had the lowest recurrence rates, at about 3% and 1.6% respectively. Incomplete removal is the most common reason a pyogenic granuloma returns, which is why techniques that destroy or remove the base of the growth thoroughly tend to have better outcomes. If a growth does recur, it can simply be treated again with the same or a different method.