How do I know if my cat has a tick?
Ticks are big enough to spot. Run your hands over your cat’s body when they come home for dinner each evening to check for any lumps or bumps. A tick will feel like a small bump on your pet’s skin.
They tend to attach themselves to areas around a cat’s head, neck, ear and feet. Brushing also helps to remove them.
Ticks vary in size between 1mm and 1cm long, depending on their age. They look like tiny spiders with a whiteish, egg-shaped body. This body becomes larger and darker as it fills with blood.
https://www.bluecross.org.uk/pet-advice/cats-and-ticks