- Haematemesis
Vomiting blood - may be associated with gastric ulcers, acute
poisoning or haemorrhagic gastroenteritis. This is a serious sign.
- Haematoma
A blood clot under the skin - most commonly seen under the skin of the
ear flap as a result of head shaking.
- Haematuria
Passage of blood in the urine.
- Haemorrhagic Gastroenteritis
A severe condition of dogs whereby there is vomiting and bloody
diarrhoea of sudden onset accompanied by dehydration - an emergency
situation.
- Harderian Gland Enlargment
Swelling (hypertrophy) of Harder's gland which is situated on the back
of the third eyelid.
- Hard Pad
A form of Canine Distemper
- Harvest Mite Infestation
Infestation particularly between the toes and on the ear flap with the
harvest mite Trombicula autumnalis.
- Heat stroke
Collapse as a result of exposure to too high an environmental
temperature. Dogs with heat stroke often have a body temperature of
greater than 106'F and need to be cooled rapidly. Seek veterinary
advice instantly.
- Hepatitis
Inflammation of the liver resulting from viral or bacterial infection.
- Hyperaesthesia
Increased sensitivity to external stimulae (sound, touch,
light).
- Hyperkeratosis
Thickening of the outer layer of the skin.
- Hyperthyroidism
Excessive production of thyroid hormone resulting in weakness, muscle
wasting, weight loss, restlessness and increased heart rate
- Hypoglycaemia
Lack of glucose in the blood.
- Hypothermia
Lowered body temperature.
- Hypothyroidism
Lack of thyroid hormone causing obesity, lethargy, bilateral hair
loss, and skin changes.
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