Did you know all bitches go through a season? Some strut their stuff like it’s Crufts on Valentine’s Day 💃 Others are quiet and subtle, and you might barely notice anything has changed. If your little lady seems like she’s skipping hers, think again.
Understanding what happens when your bitch is in season (also called a female dog in heat) makes life much easier for both of you, from spotting the early signs and managing behaviour changes, to avoiding accidental litters and deciding when (or whether) to spay.
Signs Your Bitch Is Coming Into Season
This is the start of the season and usually lasts around 7 to 10 days. Common signs your bitch is in season include:
- Swollen vulva – often the first noticeable sign
- Bloody discharge – can vary from light pink to dark red
- Excessive licking of her back end
- Increased urination – she is leaving scent marks
- Behaviour changes – clingy, restless, more affectionate, or a bit grumpy
- Attracting male dogs, but not yet fully receptive to mating
Some bitches show every sign clearly; others are much more discreet. Tracking changes in your own dog over a couple of cycles will help you recognise her normal.
Signs She’s in Full Season (Fertile Window)
This is the fertile window, typically lasting another 7 to 10 days. At this stage, she is much more likely to accept a mating attempt.
- Discharge may become lighter or more straw-coloured
- Flirty behaviour – tail “flagging” (lifting tail to the side), backing up to male dogs
- Standing still and accepting mating attempts
- Vulva still swollen, but may soften slightly
- Extremely attractive to males, and usually very interested in them too
This is the time when management matters most. Even the best-trained dogs can forget their recall when hormones kick in, so extra care is essential.
Behaviour Changes During a Season
Hormones can influence more than just physical signs. Some bitches become noticeably clingier, more affectionate, or want extra reassurance, while others seem restless, sensitive, distracted, or a little grumpy.
You may notice:
- Less reliable recall or focus outdoors
- Increased interest in other dogs
- Lower tolerance around busy environments
- Restlessness or difficulty settling
- More scent marking and sniffing behaviour
- Wanting more closeness, or sometimes more space
Some behavioural shifts are completely normal and often settle once hormones balance again. That said, a season can temporarily lower a dog’s tolerance threshold, especially if they are already sensitive, worried, or easily overwhelmed.
This is where understanding subtle communication becomes so useful. Changes in tension, avoidance, irritability, or social tolerance may simply mean your dog needs a little more patience and management during this time. If you are unsure what you are seeing, it is worth brushing up on your dog’s body language, thinking about the ladder of aggression, and remembering how easily small stressors can build through trigger stacking.
After Her Season
After the fertile phase, your bitch moves into the later part of her cycle. You might notice:
- Vulva gradually reduces in size
- Discharge stops
- Behaviour returns to her usual self
- If she is not spayed, she may go through a phantom pregnancy a few weeks later
A full season usually lasts around 2 to 4 weeks from first signs to everything settling down again.
Top Tips for When Your Bitch Is in Season
1. Keep her on lead, always
Even the best recall cannot compete with hormones. Males will come running, and she might go looking too. A secure lead or long line in safe areas is your friend.
2. Avoid busy dog walking spots
Swap popular parks for quiet walks or enrichment games at home or in the garden. Male dogs can pick up her scent from a distance, so calmer locations reduce unwanted attention.
Even calm, well-socialised dogs may feel more sensitive or distracted during this period. Hormones can make some bitches less tolerant of busy environments or unwanted attention from other dogs. Quiet routes, decompression walks, and calmer sniff-heavy outings often work better than crowded parks or social dog hotspots. If your dog already tends to feel worried or overwhelmed, it is worth supporting her in the same gentle way you would with fearful dogs.
3. Use doggy pants (yes, they’re a thing!)
These can help manage bleeding indoors and discourage mounting from overly keen dogs at home. Just make sure they fit well and are removed regularly so she can toilet comfortably.
4. Keep male dogs separate
If you have got an unneutered male in the house, barriers, supervision, and ideally physical separation are essential. Do not rely on recall or “they’d never do that”. Biology is powerful.
5. Watch for behaviour changes
Some bitches get clingy, moody, or hyper; others seem a bit off. It is normal. Be patient, keep training positive and gentle, and give her space if she asks for it. If anything feels very unusual for your dog, it is sensible to rule out discomfort or health issues too. Our health checklist may help you think more broadly.
6. Focus on calm enrichment
Interactive feeders, LickiMats, snuffle mats, chews, and scent games are great alternatives to high-energy outings while she is in season.
7. Track her cycle
A season typically lasts 2 to 4 weeks. Note the start and end dates in your phone so you can predict the next cycle and discuss spaying options with your vet if you are not planning to breed.
8. Don’t scold mounting
Some bitches mount during their season too. It is hormonal, not naughty. Redirect gently with enrichment or training rather than telling her off.
What Is a Phantom Pregnancy?
A phantom pregnancy happens when a female dog shows signs of being pregnant despite not being mated. It usually occurs around 6 to 12 weeks after her season, when hormone levels naturally shift and her body thinks she might have puppies.
Common Signs of Phantom Pregnancy
- Nesting behaviour (digging, gathering toys or blankets)
- Mothering objects (cuddling, carrying or guarding toys)
- Mammary gland development or milk production
- Lethargy, clinginess, or changes in appetite
- Mood changes – anxious, grumpy, or mildly depressed
Why Does It Happen?
It is a normal biological process in many unspayed bitches. After ovulation, progesterone stays high whether or not she is pregnant. When it falls, prolactin rises, which can trigger maternal behaviours and physical signs. Some bitches have very mild phantom pregnancies; others are more affected.
How to Support Her During a Phantom Pregnancy
- Limit access to “babies” – remove soft toys or objects she is mothering.
- Increase gentle exercise and calm enrichment – sniffy walks, scent games, and light training can help her cope without adding extra stress.
- Don’t encourage nesting – avoid reinforcing the behaviour with extra fuss around beds or “nursery spots”.
- Avoid touching the mammary area – this can stimulate milk; speak to your vet if you notice lactation.
- Monitor her closely – if symptoms are severe, distressing, or prolonged, contact your vet.
Should You Spay Your Bitch?
Spaying prevents a bitch coming into season and eliminates the risk of pregnancy. It can also reduce certain health risks, but it is not a one-size-fits-all decision. It is important to consider your dog’s age, breed, health, and temperament, ideally with vet and behaviour input.
Reasons to Spay
- Prevents unplanned litters
- Reduces risk of mammary tumours – especially if done at an appropriate time
- Eliminates pyometra risk – a dangerous womb infection
- Prevents hormonal mood swings and phantom pregnancies
Things to Consider Before Spaying
- Age & maturity – many vets now recommend waiting until growth plates close and physical development is more complete, especially for medium and large breeds.
- Breed-specific factors – some breeds may benefit from later spaying; always discuss timing with your vet.
- Behavioural factors – anxious or fearful dogs may benefit from careful timing and behaviour support alongside spaying.
- Weight gain & coat changes – these can usually be managed with diet, enrichment, and appropriate exercise.
Reasons to Delay or Reconsider
- You plan to responsibly breed in future.
- She is currently in season or in a phantom pregnancy (it is usually best to wait until hormones settle).
- You have not yet discussed breed-specific timing and health considerations with your vet.
When to Spay a Bitch in Season
If you are not planning to breed and want to make a sensible long-term decision for your dog’s health and management, spaying may be the most practical option. Timing is key. Many vets recommend spaying roughly 12 to 20 weeks after her season, once hormones have settled. Your vet can advise on the best timing for your individual dog.
How to Support Your Bitch After Spaying
1. Keep her calm and quiet
No jumping, zoomies, or long walks for 10 to 14 days. Crate rest, pen time, or using baby gates can help if she is prone to overdoing it.
2. Prevent licking or chewing the wound
Use a cone, soft collar, or recovery suit. Even one good nibble can reopen stitches and delay healing.
3. Short lead walks only
Stick to gentle toilet breaks to start, then gradually build up activity after your vet gives the all-clear.
4. Keep the wound clean and dry
No baths, swimming, or lying on wet grass. If you notice redness, swelling, discharge, or she seems very uncomfortable, call your vet.
5. Use food-based enrichment instead of high activity
Try LickiMats, snuffle mats, long-lasting chews, and gentle trick training to keep her brain busy while her body heals.
6. Follow your vet’s post-op advice
Give all prescribed pain relief and attend check-up appointments as recommended.
7. Offer calm reassurance
She may be tired, clingy, or a bit moody after surgery. Keep things low-stress, predictable, and supportive.
If your dog’s behaviour changes during a season feel difficult to manage, or you are unsure what is hormonal versus what may need extra support, a private consultation can help. Looking at behaviour through a welfare-first lens often makes these changes feel much less confusing.
FAQ
How often does a bitch come into season?
Most bitches come into season roughly every 6 to 12 months. Smaller breeds may cycle more frequently, while large and giant breeds may have longer gaps. Tracking your own dog’s pattern helps you predict when she will next be in heat.
How long does a bitch in season bleed?
Bleeding usually lasts around 7 to 10 days, though the full season can last up to 2 to 4 weeks. The discharge often starts darker and becomes lighter or straw-coloured as she moves into her fertile window.
Can I walk my bitch in season?
Yes, but choose quiet areas and keep her on lead. Avoid busy parks or off-lead areas where male dogs may approach. You can also lean more on enrichment at home to keep her happy without too much excitement.
Can dogs become more reactive during a season?
Yes. Hormonal changes can temporarily lower a dog’s tolerance threshold. Some bitches become more sensitive, distracted, restless, or reactive during their season, especially in busy environments or around other dogs. Calm management, quieter walks, and avoiding pressure can help.
Why is my dog more clingy during her season?
Many bitches become more affectionate or seek reassurance while in season. Hormonal changes can influence mood, confidence, and social behaviour. Some dogs want more closeness, while others prefer extra space.
When is it safe to spay after a season?
Many vets recommend spaying around 12 to 20 weeks after a season, once hormones have settled. Timing can depend on her age, breed, and health, so always follow your vet’s specific advice for your dog.
Do all bitches get phantom pregnancies?
No, but they are quite common. Some bitches show only subtle changes; others have obvious nesting and mothering behaviours. If you are concerned about your dog’s phantom pregnancies, speak to your vet about management and whether spaying might be a good long-term option.
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