Why a bare red bottom matters
A hen with feathers missing around her vent and red or raw skin is showing you that something is wrong, though the cause is not always serious. It might be as simple as a normal molt or as urgent as a prolapse or an injury being pecked by flockmates.
Red skin also attracts other chickens. Pecking can make a small patch much worse, so it is worth looking early. This article covers the usual causes, how to check your hen, safe first steps, and when to see a vet.
Common causes
Feather pecking and bullying
Chickens may pull feathers from each other, especially around the rear. Crowding, boredom, a poor diet, and stress can all contribute. Once the skin is bare and red, the area can draw more pecking. If one hen is bare and the others are not, look at who is doing the pecking and whether the injured bird is being kept from food. Our guide to chicken stress symptoms covers some of the pressures that can lead to this.
Rooster mating damage
If you have a rooster, wear on the back, base of the neck, and sometimes the rear can come from mating. Hens with worn backs and sides are common in flocks with roosters. Some flocks use hen saddles to protect the feathers. If the damage is deep, bleeding, or infected, a vet should look at it. Having enough hens per rooster is often suggested to spread out the attention.
Mites and lice
External parasites can cause itching, feather damage, and irritated, red skin around the vent. Check the vent area, under the wings, and the base of feathers. Lice and their egg clusters may be visible at the feather base, and mites may be seen on the bird or on roosts, especially at night. Heavy infestations can make birds weak and pale. Ask your vet or poultry supplier about treatments suited to your country and egg use. Treatments should be used as labeled.
Molting
During a molt, chickens lose and regrow feathers, usually once a year. Bare patches are normal, but the skin should not look raw, wounded, or swollen. Molting hens often stop laying for a while.
Dirty vent and droppings irritation
Diarrhea or messy droppings can stick to vent feathers and irritate skin. Loose droppings have many causes, from diet to parasites and illness. If a hen has persistent diarrhea or a pasty, foul-smelling vent, speak to a vet. A forum owner whose hen had a swollen red rear suspected leftover table scraps and lettuce; diet changes can affect droppings, but it is not a proven cause of raw skin, and the cause should be properly checked.
Injury or other health problems
Predator attempts, rough wire, laying difficulties, and infections can all damage the rear. A swollen, protruding, or bleeding vent can indicate a prolapse, which is an emergency. Chickens that are generally unwell, thin, or lethargic should be seen by a vet.
How to inspect the hen
Do this calmly, with good light and clean hands:
- Hold her gently with her body supported.
- Look at the skin: is it red, scabbed, swollen, bleeding, or dirty?
- Part the feathers near the vent and look for tiny moving mites, lice, or egg clusters.
- Check whether the vent itself looks normal or has anything protruding.
- Check her crop, weight, comb color, and behavior. A bright, eating hen is a better sign.
- Observe the flock to see who is pecking whom.
What to do: first steps
- Separate her if she is being pecked. Keep her where she can still see the flock, so reintroduction is smoother.
- Keep the area clean and dry. A vet can advise on cleaning a wound safely.
- Treat parasites if found, using a product made for poultry and following the label.
- Reduce the cause. Add space, perches, feeders, and distractions such as scratching areas. Review the diet and look for stressors.
- Watch for worsening. Redness that spreads, a bad smell, discharge, or lethargy means a vet visit.
Feeding for feather regrowth
Feathers are mostly protein, so a complete layer or all-flock feed suited to the age and stage of your birds supports regrowth. During a molt, some keepers use a feed with higher protein, though it is wise to check what suits your flock. Do not rely on lots of treats or scraps, which dilute a balanced diet. Hens with persistent feather loss despite good feeding should be seen by a vet.
Home remedies: what to be careful about
Pastes, creams, salt washes, witch hazel, aloe, and antacids are sometimes suggested for a raw rear end. There is no solid evidence for these, and some products can be harmful if chickens peck at and swallow them. Do not use medicated creams meant for people without checking with a vet first. Similarly, putting coffee grounds in the coop is sometimes mentioned online, but it is not an established remedy for feather loss or parasites, and caffeine-containing material is not something to leave where birds can eat it. Safer: keep the area clean, separate her if needed, and call a vet for anything that looks infected or deep.
When to call a vet
See a vet promptly if you notice:
- Tissue protruding from the vent, or bleeding from it
- Deep wounds, maggots, a foul smell, or signs of infection
- A hen who is weak, pale, not eating, or straining
- Heavy parasite infestation or pale comb
- Bare patches along with other symptoms such as weight loss, weakness, or paralysis. Marek’s disease is a possibility in some of these cases, and only a vet can confirm it.
- Lack of improvement after you have fixed the likely cause
Prevention
- Give enough space, feeders, and waterers.
- Provide enrichment such as dust baths and scratching areas.
- Keep the ratio of roosters to hens sensible, and use saddles if needed.
- Check birds for mites and lice regularly, especially in warm weather.
- Feed a balanced diet.
- Separate and treat injured birds before they become targets.
FAQ
What should I give chickens that are losing feathers?
Check for the cause first: molt, pecking, parasites, or mating wear. A balanced complete feed supports regrowth, and a vet can advise on supplements.
Will feathers grow back?
Often they do after a molt, once the cause is removed and the skin heals. Healing time varies, and some damaged follicles may regrow poorly.
Is a bare red bottom always an emergency?
No, but check for protruding tissue, bleeding, or illness. These need prompt veterinary help.