sterilizing a female yorkie

I consider sterlization of my dog. I was looking for some information on this topic. Dog Neutering Castration Sterilization If your dog is female:
The little non-operated female dog will be in heats about 2 times a year and the heat period will last about three weeks. During this period she also might be trying to escape in the hope of finding her prince charming! So you have to watch your little female in heat carefully. Except during the heat, your dog will have no desire to reproduce and, contrary of popular belief, she will not need to have been at least once in connection with a male to be balanced. It is certain that an operation is always a risk but veterinarians will tell you that this kind of operation is now very safe and complications rare.
There are many health benefits of performing this kind of operation:
Advantages of spaying female dogs if done before 2.5 years of age, greatly reduces the risk of mammary tumors, the most common malignant tumors in female dogs nearly eliminates the risk of pyometra, which otherwise would affect about 23% of intact female dogs; pyometra kills about 1% of intact female dogs reduces the risk of perianal fistulas removes the very small risk (.0.5%) from uterine, cervical, and ovarian tumors
Disadvantage of spaying female dogs if done before maturity, increases the risk of osteosarcoma by a factor of 3.1; this is a common cancer in larger breeds with a poor prognosis increases the risk of splenic hemangiosarcoma by a factor of 2.2 and cardiac hemangiosarcoma by a factor of >5; this is a common cancer and major cause of death in some breeds triples the risk of hypothyroidism increases the risk of obesity by a factor of 1.6-2, a common health problem in dogs with many associated health problems causes urinary “spay incontinence” in 4-20% of female dogs increases the risk of persistent or recurring urinary tract infections by a factor of 3-4 increases the risk of recessed vulva, vaginal dermatitis, and vaginitis, especially for female dogs spayed before puberty doubles the small risk (<1%) of urinary tract tumors increases the risk of orthopedic disorders increases the risk of adverse reactions to vaccinations I am not a professional dog breeder and my dog is not a pedigree dog, so in this case it will be better to spay her. I am afraid that this procedure will be painful afterwards. Yorkie Mini com:
There are actually three types of surgery to spay your female dog Ovarectomy, Hysterectomy, Tubal Ligation- have the tubes tied. (This procedure does not remove the heat)
I have to ask my vet which of these methods he will use.