Infertility in the female dog

Last week we mentioned that the main cause of infertility in the bitch is an infection in the womb (uterus) or in some other area of the reproductive tract.  In fact, many of these infections are a result of some hormonal imbalances (very often originating in the ovaries) which create a fertile ground for germ invasion and multiplication. Some of these hormonal imbalances also result in abnormal heat (oestrus) cycles.  Two hormonal causes for a disturbed oestrus are hypothyroidism and hypoestronism.

Hypothyroidism:
Thyroid hormone
deficiency – (THD)

This ailment is caused by inadequate output of thyroid hormone from the thyroid gland (situated in the neck of the animal).  This hormone deficiency causes the animal’s coat to become thin and scanty; the hair is