Pyometra means infected uterus or womb, or pus in the womb, which (obviously) affects only intact females. It is a very serious condition. Without speedy veterinary treatment, the dog can die.
Although antibiotics are sometimes used to control pyometra, an operation to remove the womb is usually required as the condition tends to recur. The operation is skilled and complicated due to the presence of infection.
In most cases of pyometra the bitch will have a thick discharge from the vagina. It may be pussy or clear, but it is different to that seen in a normal season. In other cases there is no discharge and this is often called a ‘closed pyo’. The only symptoms with a closed pyo are increased thirst and possibly vomiting. The stomach may swell and appear painful. The danger of a closed pyo is that the owner will fail to recognise the signs.
Pyometra offers a good argument for spaying female dogs.
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