Why is my senior dog gaining weight and always cold? Hypothyroidism?

Daphne could have a slow metabolism or she could have hypothyroidism. I would recommend to make an appointment for a thyroid panel which is a blood test. This will tell you if she needs thyroid medication. Generally most dogs do well with treatment. If her thyroid is fine, then you may want to think about using a prescription diet dog food. Thank you so much for using Pet Coach.

Poor girl. It is really common for dogs used only for breeding to not understand play and to not be very active. If she is gaining weight despite being on a diet then I would worry about thyroid issues. She doesn’t look like she is very heavy. Also remember if she was recently spayed she will gain some weight after that due to her hormones being lowered. As far as her gum disease, if she is healthy enough (heart sounds okay and blood work normal), I would talk to your vet if she is a candidate for a dental cleaning and extractions of any diseased teeth. I hope this helps.

If you have a copy of Milo's medical record, you can choose a Petco Pet Education Center, formerly Petcoach Consult to discuss this fully. Hypothyroidism does not usually cause weight loss in dogs, and the test may be caused by euthyroid sick syndrome, meaning the thyroid hormone is low because of some other illness. There are confirmatory tests that can help your vet decide if Milo needs to be on thyroid therapy. If there are no other abnormalities on a CBC and complete blood chemistry, then additional diagnostics may be indicated, including intestinal parasite screen, GI panel, x-rays, abdominal ultrasound, etc. If Milo has a good appetite without vomiting or diarrhea, you could try feeding more calories. I like Purina ProPlan Sport. You could also try puppy food, which is higher in fat. If you do decide to switch food, mix them together slowly over 2-3 weeks to avoid an upset stomach.

I would definitely recommend some blood work, if this hasn't been done recently. Older dogs are prone to a number of health issues that can cause decreased appetite along with being less active - chronic kidney disease and hypothyroidism are two possibilities that are both very common. In many cases, these issues are treatable (at least to some extent) once a diagnosis is made, so it's well worth checking for them if you can - hopefully, there are some things you can do to make him feel better for as long as possible, even though he's getting older.

HI, thanks for using Petco Pet Education Center, formerly Petcoach! If you want to rule out hypothyroidism 100% you should have a profile done that includes fT4, TSH, T3, fT3. I like the profile to Michigan State. With that being said, hypothyroidism at 21 months old is exceedingly rare. It occurs in larger breed dogs more commonly. These dogs have stunted growth, have retention of "puppy coat," orthopedic abnormalities due to delayed growth plate closure and many other obvious abnormalities. Dynasty looks very normal. I hope this helps!

Hello and thank you for reaching out to us concerning your pets hair loss. Yes, hypothyroidism can be a cause of an older dogs hair loss. The clinical signs of hypothyroidism are no itchy hair loss, panting, constantly seeking out vents or shady places because the heat bothers them, etc. but this condition usually begins between the ages of two and five but there are some situations in which happens at an older age. There are many other diseases that can also cause hair loss so it is in your best interest To take him to a veterinarian to have a full physical examination performed. The vet will be able to run tests such as blood work up, thyroid testing, skin scraping, etc. to be able to make a diagnosis and put him on the correct treatment. I hope this information has helped. Have a great day.

I would recommend that Rex have a thorough checkup with a vet. Gaining weight and lethargy can be a symptom of hypothyroidism, which can be confirmed easily with a blood test. However, the shortness of breath has me a little concerned that there could be heart or lung disease also at play. Heart disease can cause fluid build-up in the lungs or abdomen, which can easily be confused for weight (fat) gain. After thorough examination, the vet may recommend bloodwork to check for internal medical illness, and x-rays or ultrasound to see what is going on inside the body. After your vet has a better idea of the cause of Rex's symptoms, then an appropriate treatment plan can be discussed.