I have a four year old dog and this evening I have noticed a lump on her stomach.it’s really red, doesn’t seem to bother her but she doesn’t like me trying to touch it. Will contact the vet in the morning but just wondered if anyone had any ideas what it could be? Will post the photos but I know they don’t always upload straight away. It’s hard to get a good photo but I would imagine is about 2cm wide and about 1cm high.Doesn’t look like an insect bite to me. Thank you.