Changes

*Occurs in cats and dogs mainly

*Occurs in cats and dogs mainly

*Irritation caused by enzymes, anticoagulants and histamine-like substances

*Irritation caused by enzymes, anticoagulants and histamine-like substances

*[[Skin Immunologic - Pathology|Hypersensitivity]] to flea saliva may develop

*[[Flea Bite Hypersensitivity|Hypersensitivity]] to flea saliva may develop

*Young or small animals may suffer from aneamia

*Young or small animals may suffer from aneamia

*Lesions normally in dorsolumbosacral region, caudomedial thighs, ventral abdomen, flank, neck (cats)   

*Lesions normally in dorsolumbosacral region, caudomedial thighs, ventral abdomen, flank, neck (cats)   

*Grossly:

*Grossly:

**Red papules and secondary excoriations

**Red papules and secondary excoriations