05/07/2025
Mosaic Verruca Pedis in Children (Case Study)
It started as just a few rough spots on the sole — but within weeks, the wart had spread, multiplied, and made walking painful for this child. This is the reality of mosaic verruca pedis, and in this case, we share how timely podiatric care made all the difference.
The initial presentation revealed multiple interconnected lesions with scaling, redness, and tenderness.
Over several sessions, we carried out a tailored management plan appropriate for a child, prioritising comfort, safety, and gradual clearance.
Why Professional Care Matters
This case highlights why over-the-counter wart treatments are often ineffective, particularly for mosaic verrucae. Self-treatment may not reach the deeper viral layers, and aggressive acids or patches can damage healthy skin, especially in children.
In-clinic care allows us to:
Accurately assess lesion type and depth
Use age-appropriate protocols
Monitor healing between visits
Tailor treatment to the individual child’s needs and skin response
Understanding Mosaic Warts on the Feet
Verruca pedis, commonly known as plantar warts, are caused by the human papillomavirus (HPV) infecting the skin on the sole of the foot. When these warts cluster together in a patchwork formation, they are referred to as mosaic warts. These can be more stubborn to treat than single warts, especially in children, due to their depth, size, and viral spread beneath the skin.
Regular Verruca Pedis vs Mosaic Warts
Both regular verruca pedis (VP) and mosaic warts are caused by the same virus and appear on the feet, but they behave differently.
A regular plantar wart usually shows up as a single, round lesion with a rough, raised surface. It may have small black dots (which are tiny clotted blood vessels) and is often surrounded by thickened skin. These solitary warts tend to stay in one spot and are often easier to manage with early treatment.
In contrast, mosaic warts consist of many smaller warts that merge together into a larger, flatter patch. Instead of being one distinct lump, the skin appears tiled with multiple lesions. This mosaic pattern tends to spread across the sole, often affecting areas between the toes or under the forefoot. They can be more persistent, more uncomfortable, and more likely to come back without proper care.
If the wart looks like a single bump, it’s likely a regular VP. If the area shows a clustered, mosaic-like pattern with flattened, spread-out lesions, it’s more likely a mosaic wart.
Identifying Mosaic Warts in Children
Because mosaic warts can be mistaken for corns, eczema, or calluses, it’s important to look for key signs:
Grouped small wart lesions forming a broad patch
Flat, grainy skin texture
Disruption of normal skin lines
Pain when walking or squeezing the area
Occasional black dots scattered throughout
In children, mosaic verrucae can cause significant discomfort and may limit activities like walking, running, or sports.
When to See a Podiatrist
If your child has a lesion on the foot that hasn’t resolved in a few weeks, or if the area seems to be spreading or multiplying, it may be a mosaic wart. Early diagnosis and targeted care can significantly reduce discomfort and treatment time.
Final Thoughts
Plantar warts, especially mosaic types, can be distressing and stubborn—but they’re also treatable. At Family Podiatry Centre, we provide effective care that prioritises your child’s comfort and long-term foot health.
To book an appointment:
https://familypodiatrycentre.com/appointment/show
