11. Warts

Warts are caused by certain types of human papillomavirus (HPV).

They may appear as small, rough growths on the skin.

A wart can be:

Warts can be spread by direct contact or by touching contaminated surfaces.

Avoid touching them, especially if they bleed.

A dermatologist can confirm whether a bump is actually a wart and discuss treatment options.

12. Molluscum Contagiosum

Molluscum contagiosum is a viral skin infection that causes small, smooth, raised bumps.

The lumps usually have a characteristic central indentation .

They can appear on various parts of the body.

Although they are more common in children, adults can also develop them.

They may disappear on their own over time, but they can spread to other areas or other people.

If you’re unsure what a cluster of small lumps represents, a healthcare professional can help you distinguish them.

13. A lump could be a boil.

A boil is a painful, pus-filled lump caused by an infection affecting a hair follicle or nearby tissue.

It may start as a small, tender lump and develop into:

Avoid squeezing or popping a boil yourself.

Doing so can spread the infection.

Extensive, recurring, very painful, or spreading infections may require medical treatment.