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What can cause a bump on the head?

The Checkup by Singlecare

Benign skin growths Skin growths such as moles, skin tags, and seborrheic keratosis can appear as bumps on the head. Insect bites or stings Insects such as mosquitoes, spiders, or ticks can bite or sting the head and cause an inflammatory reaction that develops as a bump. Warts are typically benign and can resolve on their own.

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