My dog has vaginal discharge, is this normal?

Sounds like an infection. Take her to see the vet. It may be UTI or bladder infection. Very common and very treatable.

Vaginal discharge is the appearance of liquid material (other than urine) from the labia of the vulva (the external female genitals). Vaginal discharge may be clear and watery (serous), bloody, thick and gray (mucousy), yellow/green (purulent), or dark green/black (after giving birth). The discharge may or may not have an odor. Licking at the vulva may also be noted.

Vaginal discharge, depending on the type and circumstances, may be considered normal in some cases. However, its presence may also signify a disease process of the urinary tract or reproductive tract.
What to Watch For

Vaginal discharge of any type other than the normal stream of urine

Attracting male dogs

Excessive licking of the vagina

Scooting the bottom along the floor

Increased urination and/or straining to urinate

Difficulty defecating

Lethargy, fever, increased thirst.

Causes

Vaginal discharge is a normal part of the heat cycle of the intact female dog. Bloody discharge occurs for several days when the bitch is in heat (in estrus).

Vaginal discharge is also a normal finding in the immediate postpartum (after birth) period.

A dark green to black discharge is often present for several days, and traces of discharge may persist for up to 3 weeks.

When the placental sites do not recede in the bitch after birth, then a persistent watery and sometimes bloody discharge may occur. This type of discharge is abnormal.

Any discharge that occurs during a pregnancy is potentially abnormal.

Urogenital tract infections, such as a urinary tract infection or an infected uterus (pyometra), may result in an opaque purulent discharge from the vulva.

Neoplasia (cancer) of the urogenital tract may cause bloody, mucousy or purulent vaginal discharge.

Vaginitis (inflammation of the vagina) may give rise to watery or mucousy discharge.

Coagulation (clotting) disorders that result in abnormal bleeding may produce a bloody discharge that can be difficult to distinguish from blood in the urine (hematuria).

Trauma or the presence of a foreign body in the vagina may result in bloody, watery or purulent discharge.

Urinary incontinence (inability to hold urine in the bladder) secondary to an abnormal location (ectopic) of the ureter, or a problem with the bladder sphincter (the muscle that acts like a valve at the opening of the bladder) may result in pooling of urine in the vagina and secondary irritation and discharge.

A defect and open communication (fistula) between the rectum and vagina may lead to the passage of watery fecal material from the vagina.

you probably wouldn’t notice normal discharge because dogs lick and clean themselves often, so when you actually do notice discharge, that should mean your dog has an infection or is pregnant, which in your case she is not. So I would take her to a vet if it continues so that you can get antibiotics to give her.

Have your Vet check her out. It is not normal, as far as I know.

Sounds like an infection I suggest a trip to the vet for a check out.

There is a condition called "viginitus" (I may have spelled this incorrectly). One of my puppies had this and this was before she was spayed. I took her to the vets because she had a discharge and she was examined her internally, this put her off vets forever. I don’t know if a three year old spayed b1tch can have this condition.

Although I think that she should be taken to the vets, please do not allow them to examine her internally. Some vets think that they have to jump through hoops to prove that they have made a thorough examination, they sometimes do this to add to the cost of a consultation. Not all vets are loving and caring. She may just need antibiotics, if you have a caring vet who you trust don’t worry, nevertheless your b1tch does not need an internal examination, it’s a minor problem, however this needs attention.