Lump under the horse's coat

If you discover lumps under your horse's coat , you're probably wondering whether it's harmless or needs to be treated. In this blog post, you'll learn about possible causes, treatment options, and when you should consult a vet.

What are lumps under the coat of a horse?

A lump under the skin is usually a local thickening or swelling that can occur for a variety of reasons. These lumps vary in size, shape and firmness. Some feel soft, others are more hard or knotty.

Causes of a 'lump under the fur'

The possible causes are varied and range from harmless reactions to serious illnesses:

1. Insect bites and allergic reactions

• Often caused in summer by horseflies, mosquitoes or flies.
• Lumps appear suddenly, are usually soft and itchy.
• Treatment: Cool, apply soothing ointments (e.g. zinc ointment).

2. Injuries and hematomas (bruises)

• Caused by kicks, falls or saddle and girth pressure.
• The lumps are usually warm, hard and sensitive.
• Treatment: Cool and encourage gentle exercise to reduce swelling.

3. Sebaceous gland blockages (sebaceous cysts)

• Small, firm lumps under the skin, often on the neck, shoulder or croup.
• Usually harmless, but can become infected.
• Treatment: Often not necessary. If infected, have it removed by a vet.

4. Abscesses (accumulations of pus)

• Swelling with redness, often warm and painful.
• Cause: Bacterial infection, e.g. through small injuries.
• Treatment: Veterinarian necessary! Pus must be removed.

5. Sarcoids (skin tumors)

• Benign tumors, often in the area of ​​the ears, eyes or abdomen.
• Cause: Viral infections such as bovine papillomavirus.
• Treatment: Consult a veterinarian, removal usually surgically or with ointments.

4. Nettle fever (urticaria)

• Sudden, large lumps on the skin, often caused by an allergic reaction.
• Cause: food intolerance, medication, insect bites.
• Treatment: Antihistamines, consult veterinarian if necessary.

treatment options

The treatment depends largely on the cause:

• Cooling: For swelling and insect bites (e.g. cold compresses).
• Ointments: Soothing ointments such as zinc ointment or arnica gel.
• Hygiene: Clean horse brushes and regular coat care prevent skin problems.
• Breathable saddle pads: For blocked sebaceous glands in the saddle area
• Exercise: Promotes lymph flow and reduces swelling.

When should a veterinarian be consulted?

Not all lumps are harmless. A visit to the vet is advisable if:

• The lump grows rapidly or increases in size.
• Is painful or warm.
• Your horse is lame or shows other symptoms of illness.
• The lump is bleeding or leaking fluid.
• Chronic lumps that change.

Prevention – How to protect your horse from skin problems

• Regular coat care: Use high-quality, clean horse brush sets made of natural fibers to avoid skin irritation.
• Clean equipment: Clean horse grooming equipment regularly to prevent bacteria buildup. Find out more here.
• Antibacterial and temperature-regulating saddle pads. Find out more here .
• Species-appropriate care: Lack of exercise can impair lymph flow.