Medical News Today: 7 causes of anal bumps

Molluscum contagiosum is a viral illness that causes lesions, called papules, to form on the skin.

The papules may be clear, yellow, flesh colored, red, or pink. They are firm and typically smooth and domed.

When molluscum contagiosum is transmitted through sex, these lesions commonly develop on the lower stomach, upper thighs, anus, and genital region.

A person may have only a few papules or many that vary in size.


Molluscum contagiosum sometimes goes away without treatment, but this can take several months.

To treat molluscum contagiosum, a doctor may:

  • recommend a topical ointment, many of which contain podophyllotoxin, salicylic acid, or potassium hydroxide
  • remove papules with lasers or by freezing them off

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