How to Take a Horse's Vital Signs: Temperature, Pulse, and Respiration

Keep a few simple tools in your barn first-aid kit: a digital rectal thermometer with string and clip, a watch or phone timer with a second hand, a stethoscope if you have one, lubricant, and a notebook or app for recording results. A stethoscope is helpful for hearing heartbeats, but you can also feel a pulse at the facial artery along the lower jaw.

If your horse is nervous about handling, ask your vet to show you the safest technique during a routine visit. Stand close to the shoulder or hip rather than directly behind the horse, and have an experienced handler hold the horse if needed.

Use a lubricated digital rectal thermometer and stand to the side of your horse's hindquarters, not directly behind. Gently lift the tail and insert the thermometer into the rectum, angling slightly toward the center of the body. Keep hold of the thermometer or its attached string until it beeps.

Record the number right away. In a calm adult horse at rest, many sources consider 99 to 100.5°F normal, while some equine care references use 99.5 to 101.5°F as a broader normal range. Temperature can run a bit higher later in the day and may rise with stress, transport, hot weather, or recent exercise. A rectal temperature over 101°F deserves a call to your vet if your horse also seems unwell, and temperatures above about 104.9°F are an emergency because overheating can become life-threatening.

You can measure pulse by feeling the facial artery where it crosses the lower jawbone. Use your first and second fingers, not your thumb, because your thumb has its own pulse. Once you feel a steady beat, count for 30 seconds and multiply by two, or count for a full minute if the rhythm seems irregular.

A stethoscope can also be placed just behind the left elbow to hear the heartbeat directly. A normal resting adult horse pulse is usually about 30 to 44 beats per minute, with some equine references listing 30 to 42 as typical. Foals normally run much faster than adults, so age matters. A pulse above 50 beats per minute at rest is a reason to contact your vet, especially if your horse has pain, fever, dehydration, or colic signs.

Respiration rate is the number of complete breaths in one minute. One inhale plus one exhale equals one breath. Count by watching the ribcage move, the flank rise and fall, or the nostrils gently dilate and relax while your horse is standing quietly.

Normal resting respiration in an adult horse is often about 8 to 12 breaths per minute, though some care guidelines list 12 to 20 as a broader range depending on setting and management. Breathing should be quiet and easy at rest. Rapid breathing, nostril flare, abdominal effort, or noise while breathing at rest are more concerning than the number alone and should prompt a call to your vet.

Not every elevated number means a crisis. Exercise, excitement, trailering, hot weather, pain, and even taking the measurement for the first time can temporarily raise temperature, pulse, and respiration. That is why it is best to check vitals when your horse has been resting quietly for several minutes.

Still, context matters. If the numbers stay high after rest, or if your horse also has dullness, sweating, poor appetite, cough, nasal discharge, diarrhea, or colic signs, your vet should be involved. Trends are often more useful than a single reading.

Call your vet promptly if your horse's temperature is over 101°F and they seem sick, if pulse is over 50 beats per minute at rest, or if respiration is over 30 breaths per minute at rest. These thresholds are commonly used in equine first-aid guidance and can signal pain, fever, dehydration, respiratory disease, or shock.

See your vet immediately if your horse has severe breathing effort, noisy breathing at rest, blue, gray, or very pale gums, collapse, signs of heat stroke, or worsening colic. While waiting, keep your horse calm, reduce stress, offer clean water unless your vet advises otherwise, and write down the exact numbers and the time you took them.

Take your horse's temperature, pulse, and respiration twice daily for several days when they are healthy. Try to measure at about the same times each day because temperature can be a little higher in the afternoon than in the morning.

Record the setting too: weather, recent exercise, transport, medications, and behavior. Over time, you will learn what is normal for your individual horse. That baseline can help your vet interpret changes faster and may support earlier treatment when something is wrong.