Verruca Vulgaris (Common Wart): This is the most common type of wart and typically presents as a rough, hard, or flat growth on the skin. The diagnosis is often made clinically based on the appearance and location of the lesion.

Flat Wart (Verruca Plana): These are smaller and smoother than common warts and often appear in large numbers. They can be found on the face, hands, or other areas and are more common in children and young adults.
Molluscum Contagiosum: Although not a true wart (caused by a poxvirus, not human papillomavirus), it can be confused with warts due to its appearance as small, pearly, or flesh-colored bumps. It is contagious and can spread through skin-to-skin contact or by touching contaminated objects.
Seborrheic Keratosis: A benign skin growth that can resemble warts. It is more common in older adults and can appear anywhere on the body.

Squamous Cell Carcinoma: Although rare, it is crucial not to miss this diagnosis. Squamous cell carcinoma can sometimes resemble a wart, especially if it is a more aggressive or neglected form. It requires prompt medical attention due to its potential to metastasize.
Basal Cell Carcinoma: The most common form of skin cancer, which can occasionally be mistaken for a wart, especially in its early stages. It is less aggressive than squamous cell carcinoma but still requires medical intervention.

Keratoacanthoma: A rare, low-grade (rarely metastasizing) malignancy that can mimic a wart in its appearance. It typically grows quickly and can resolve on its own, but it may require surgical removal to confirm the diagnosis and prevent potential complications.
Epidermoid Cyst: While not typically mistaken for a wart, an epidermoid cyst can occasionally present in a way that might be confused with a wart, especially if it becomes inflamed or infected. It is a benign cyst that can usually be diagnosed based on its characteristic appearance and location.