My two year old lab mix has developed a pea size lump on his left ear flap, it just showed up yesterday. He has been shaking his head today, but touch to it does not seem to bother him. What can this be?
I'm so sorry I didn't see your post sooner. Dogs with floppy ears can form a hematoma which is just a small collection of blood from broken blood vessels. If a little capillary keeps leaking due to the dog shaking his head, these things can get quite large and eventually rupture. You don't want to let them get to that point because the repair is a bit difficult on the tin skin of the ear flaps.
Have your vet take a look at it as it may eventually need to be opened and drained. If it's not a hematoma, other possibilities are insect bites or an abscess. Since your dog is shaking his head, he's in some amount of discomfort, so go ahead and make an appointment with your vet.
This site complies with the HONcode standard for trustworthy health information.
The Content on this Site is presented in a summary fashion, and is intended to be used for educational and entertainment purposes only. It is not intended to be and should not be interpreted as medical advice or a diagnosis of any health or fitness problem, condition or disease; or a recommendation for a specific test, doctor, care provider, procedure, treatment plan, product, or course of action. Med Help International, Inc. is not a medical or healthcare provider and your use of this Site does not create a doctor / patient relationship. We disclaim all responsibility for the professional qualifications and licensing of, and services provided by, any physician or other health providers posting on or otherwise referred to on this Site and/or any Third Party Site. Never disregard the medical advice of your physician or health professional, or delay in seeking such advice, because of something you read on this Site. We offer this Site AS IS and without any warranties. By using this Site you agree to the following Terms and Conditions. If you think you may have a medical emergency, call your physician or 911 immediately.