How Long Does a Dog’s Heat Last? Stages, Symptoms and What to Expect

Your female dog is in heat? It’s a natural process but can be confusing for many owners. Discover how long a dog’s heat lasts, what the signs are, how to support your pet through it, and why spaying might be worth considering.

Ile trwa cieczka u psa? Etapy, objawy i co warto wiedzieć

How Long Does a Dog’s Heat Last? Stages, Symptoms and What to Expect

 

 

What Is the Heat Cycle in Dogs?

The heat cycle, also called estrus, is the fertile period in a female dog’s reproductive cycle. During this time, she becomes attractive to males and can get pregnant. The full cycle has four phases, but “heat” is the most noticeable one to owners.

 

 

How Long Does Heat Last?

On average, a dog’s heat lasts 2 to 4 weeks. The duration varies based on breed, age, and individual differences. The cycle includes four phases:

1. Proestrus – 7 to 10 days

Bloody discharge appears, the vulva swells, and the dog attracts males but won’t accept mating yet.

2. Estrus – 5 to 14 days

This is the fertile phase when mating can occur. Discharge becomes lighter in colour, and the dog becomes receptive to males.

3. Diestrus – around 2 months

Post-heat phase. The dog is no longer fertile, but hormonal changes may simulate pregnancy (false pregnancy).

4. Anestrus – 3 to 4 months

This is the resting period before the next cycle. Hormone levels return to normal.

 

 

How Often Does a Dog Go into Heat?

Most female dogs go into heat twice a year. Some breeds, like Basenjis, may only cycle once per year. The first heat typically occurs between 6 and 12 months of age.

 

 

Common Signs of Heat

  • Bloody or pinkish vaginal discharge
  • Swollen vulva
  • Frequent licking of the genital area
  • Behaviour changes – restlessness, clinginess, or irritability
  • Increased interest from male dogs

 

How to Care for a Dog in Heat

  • Always keep her on a leash outdoors – to avoid unwanted mating
  • Use protective dog pants indoors – to manage discharge
  • Monitor her behaviour closely – excessive panting, anxiety, or lethargy may need vet attention
  • Maintain hygiene – wash bedding and clean her space more often

 

Does Spaying Stop the Heat Cycle?

Yes. Spaying permanently ends the heat cycle and prevents pregnancy. It also reduces the risk of reproductive cancers and pyometra. Speak to your vet about the best timing, usually before or shortly after the first heat.

 

 

Conclusion

The heat cycle is a natural part of every female dog’s life. With knowledge and the right care, you can help her through it comfortably. And if you’re not planning to breed – spaying is a safe and responsible choice. 🐶🩸

 

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