Ovarian cysts and tumors -
This is not very common, however it can affect females and the risk increases if she is not fixed.
Heat related discharge -
While toy sized breeds do not have a lot of discharge compared to some larger breeds, there is often a fair enough amount that it is recommended to use a canine diaper. Even if you do not see anything, there will be faint smears that over time will add up.
If the bedding has not been washed, you'll notice brown stains that accumulate. Using a canine diaper will help keep things tidy and she should be given a bath once she comes out of season.
Hormonal related shedding -
This breed itself is considered to have moderate shedding. Female Chihuahuas will shed more than males IF they are not spayed. The heat cycle triggers a shed; this is often referred to as 'blowing the coat'. Also, when a female delivers a litter, she will have a heavy shed.
Being the target of interested males - If you do not have your female spayed, she is at risk every time she is taken outside when in heat. Males will smell her from up to 3 miles away.
Additionally, when she urinates, she will leave trace amounts of blood. Roaming males will fixate on that and can actually wait nearby for her to return.
Always keep her on leash, close to you and keep an eye out for dogs that may be in the area. During this time, it is best to avoid very public places such as dog parks. Finally the element of 'interest' can, of course, result in pregnancy. Handling this is a huge responsibility.
Behavioral and Temperament Difference Between Male and Female Chihuahuas
You will hear a lot of people say that male are more aggressive and some will insist that females bark more. Then, you'll hear others say just the opposite!
The truth is that each dog is an individual. Dogs behave the way that they do based on several factors:
1) First life lessons instilled by the breeder -
Handling a newborn during the first few weeks and socializing him or her from a young age up until he or she is ready to go to a new home sets the foundation for a dog's temperament.
2) Genetics -
Can an aggressive, biting and unfriendly puppy come from relaxed and easy going parents? Yes! However , a dog's demeanor is influenced by genetics. When people talk about 'temperament' this is the canine equivalent of human personality. And like personality, it is created by a combination of nature and nurture.
Chihuahuas will act the way that they do based on genetic factors and just as importantly - how they are raised. This leads us to #3…
3) How the dog is raised -
To ask which gender is better, male or female Chihuahuas is a trick question since either will excel and be a well behaved dog if he or she is not carrying aggressive genes AND if the dog is raised in a loving home in which boundaries are set and all care needs are given in the proper way.
This breed needs to be socialized to people, other dogs, cats and all element of the world including cars, noises and more.
Those who insist that males are shy and females are more outgoing may have had a male (or two) that happened to be shy and in need of training to gain self-confidence.
Those that say females are more anxious may have happened to have a female Chihuahua that suffered with separation anxiety and was in need of training for that. Either gender can have struggles and most will learn to be well adjusted with some special attention to certain issues.
This being said, a super shy Chihuahua may also act a bit reserved and a nervous dog may never be completely relaxed. Males and females cannot be put into categories of behavior , each will have their own personality.