Source: www.healthychildren.org
If you see a small brown bug attached to your child’s skin, it may be a tick. A wood tick (dog tick) is the size of an apple seed. A deer tick is the size of a poppy seed or pinhead. After feeding on blood, ticks can swell to triple their size and are easier to see.
Read the full article at https://www.healthychildren.org/English/health-issues/conditions/from-insects-animals/Pages/how-to-remove-a-tick.aspx