Hackles
The raised hairs along a pet’s back when they’re excited or scared.
Haplorhine
It relates to primates but is also mentioned in exotic pet discussions.
Harlequin
A specific coat pattern in Great Danes and other breeds.
Haustorium
In parasitology, this term describes how parasites feed on pets.
Heliotrope Rash
A rare skin reaction in pets, usually due to allergies.
Hemangiosarcoma
A type of cancer affecting dogs and cats.
Hematacrit
A blood test measurement used in veterinary diagnostics.
Hematuria
The presence of blood in pet urine is often a sign of illness.
Hemostasis
Understanding how to stop bleeding is crucial when trimming nails.
Hepatomegaly
Enlarged liver, a symptom of illness in pets.
Heterochromia
When a pet has two different-colored eyes.
Hirsutism
Excessive hair growth is sometimes seen in aging pets.
Histamine Release
The reaction that causes pet allergies or itching.
Histiocytes
A type of immune cell that can cause tumours in pets.
Histiocytoma
A common benign skin tumour in young dogs.
Hock
The joint in the hind leg of dogs, cats, and horses.
Hock Joint
An important area to check when grooming dogs and cats.
Horny Layer
The outermost part of an animal’s skin is relevant for grooming.
Hot Clipping
A method of clipping a horse’s coat with heated clippers.
Humerus
The bone in the upper front limb of pets.
Hydrophobia
Fear of water can indicate rabies and anxiety in pets.
Hygrophilic
Describes pets (like amphibians) that thrive in humid environments.
Hyperesthesia
A condition causing extreme skin sensitivity in cats.
Hyperkeratosis
Thickened paw pads or nasal skin in dogs.
Hyperthyroidism
It is common in older cats, causing weight loss and hyperactivity.
Hypertrophic Osteopathy
Bone disease in pets can cause serious health issues.
Hypocalcemia
Low calcium levels are often seen in nursing pets.
Hypothermia
Low body temperature is dangerous for small pets.
Hypotrichosis
A condition causing hair loss in some pets.
Hypovolemia
A dangerous drop in blood volume requires emergency care.