An angiokeratoma is a benign lesion of capillaries, resulting in small marks and characterized by hyperkeratosis.

Hyperkeratosis is any lesion with overgrowth and thickening of the skin, such as warts, calluses, and corns.

The medical term meaning benign overgrowth and thickening of the epidermis is "hyperkeratosis".

There is not an exact meaning for thin blood but some drugs are called "blood thinners" as they act as anticoagulants. These slow down the clotting time.

It could be Digital Hyperkeratosis*. There is a chance that it is not that condition though, and you should have your bulldog's feet checked. *A skin condition affecting the foot pads causing them to thicken. Thickenning can cause cracked, infected, and even painful foot pads.