What is heat in dogs?

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By JeraldDossantos

The dog enters its puppy stage and begins internal maturation. This includes changes such as size and weight as well as improvements in defenses, maturation, and maturation of some organs, including its reproductive organs.

dogs in heat

This maturation of the sexual organs is experienced by both males and females. This is when they can reproduce. Heat is when a dog is ready for reproduction. Oestrus development takes place at different rates for males and females.

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Males are born earlier than females. The urge to have sex is most often felt between 6-24 months of life. On the other hand, males enjoy the “infant” stage more and become sexually mature around 2 or 3 years.

Due to hormonal loads, heat can cause many changes in a dog’s body. These changes can be difficult to spot. Enmity can be caused by changes in the psychological or behavioral levels.


Female heat can last between 5-10months. Each dog’s menstrual cycle may be different, so heat durations can vary.


Dogs will experience heat throughout their lives. Your dog may experience heat deprivation or the opposite. If her menstruation lasts longer than 21 days, it could be a sign of a disorder. If you are experiencing any of these symptoms, it is a good idea to consult your veterinarian. This could be due insufficient nutrition, age, or a genetic condition. There is a solution, no matter what the problem.

The exact rules are impossible to determine. It is not possible to know the exact rules. For instance, heat doesn’t happen every 6 months. Every bitch is unique and can be affected by different factors.


Race can also affect the heat. Smaller breeds are more likely to reach sexual maturity earlier than larger breeds. Their first heat is usually between 5-8 months old. Large breeds usually reach sexual maturity in 11 to 12 months.

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Heat can last between 2 and 4 weeks or 23 days. They occur approximately twice per year. It is a good idea to keep track of when your dog experiences heat. It’s not a scientific method, but you can predict when your next heat will be. You should also check for anomalies and discuss them with your veterinarian.

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The bitches experience four stages during the heat period. These are:

This stage lasts from 7 to 10 days. When the vulva becomes inflamed, small bloody losses can occur. During this phase, however, the male will not be rejected by the female.

Estrus: Lasts from 5 to 15 days. Males can smell her bitch. This is an indication that she has started ovulating. Although the bloody losses cease at this point, the vulva will remain inflamed.

Right-handed: This phase lasts approximately 60 days, provided that the bitch isn’t ridden during Estrus. Dexterous periods in pregnancy last between 110-140 days. This is the time for gestation and lactation.

Anestrus is the period of sexual rest. Its length is hard to determine, as it spans between the end of the Diestro (or the beginning of the next heat).

A bitch must mate between the 8th and 15th days of each cycle. This is either the day of ovulation or the Estrus period.

Dogs and heat: How much time can it last? Dogs and their sex

When female dogs go into heat, you will notice behavioral and physical changes. These are the signs:

  • Dogs will become more anxious.
  • More often urinating
  • swollen vulva
  • Breast enlargement
  • Bleeding
  • It will show less affection to its owners

We will know when ovulation is beginning when the bitch becomes more friendly with men.