The ear flap may be tender to the touch, and feel warm or hot. Applying pressure to the ear flap can create the impression of fluid beneath your fingertips.
[header] How to treat ear haematomas in cats [title] Recognize swelling or tenderness as a potential sign of ear haematoma. [step] A cat's pricked (upright) ear is usually normally no more than 3-4 inches (76-102 mm) thick, and is shaped like a gentle concave cone. A newly formed ear haematoma looks like a large blood blister.