My puppy has a soft bump on its head that turned hard. What is it?

Keep an eye in this. It sounds like a benign nodule that may go away on its own. If its getting larger then you may want to have it surgically removed and biopsied when she gets spayed. Thanks for using Petco Pet Education Center, formerly Petcoach to help you care for Nala.

It is usually cause by hitting the head on something hard or bu an insect bite. monitor it for 3-4 days to make sure the swelling is going down, if it doesn't please take him to your vet in order to get it checked.

Head trauma is always a cause for concern. Since this happened yesterday, there should have been some improvement with your pup if he suffered an injury such as a mild concussion. Sleeping a lot is not so much of a concern since young puppies normally sleep most of the day, but if you also see signs such as unresponsiveness, a head tilt, circling while walking, unequal pupil size, twitching of the eyes, ataxia (wobbly gait) or [vomiting](https://www.petcoach.co/dog/condition/vomiting-1/) then he should be [seen by a veterinarian immediately](https://www.petcoach.co/article/how-to-handle-a-pet-emergency/). If there is a bump, it may be a seroma (blood filled sac). This can treated by your veterinarian by either draining the area or trying a veterinary anti-inflammatory medication. Do not medicate him with anything OTC without the advice of your veterinarian as [many OTC drugs can be toxic](https://www.petcoach.co/article/7-human-medications-that-are-dangerous-for-your-pet) to dogs.

This could just be a normal formation of your dog skull. If it is not getting bigger, does not feel like it has fluid in it and there is no discharge I would recommend just measuring it once a day for about a week and seeing if it truly is getting bigger or not. If it is not it's likely a normal skull developing. If it is getting bigger then have your veterinarian take a look.

Hello, This bump could be caused by a hematoma (a type of bruise and collection of blood), an abscess (a local infection), or a growth. I recommend having Bella seen by her veterinarian. They can best guide you after a physical exam. I hope this is helpful. Thanks for using Petco Pet Education Center, formerly Petcoach.

Your puppy is plenty old enough to get started on her vaccinations, so taking her to the vet shouldn't be a problem. If she's acting fine and the bump is improving, then I wouldn't worry about it too much. She may have just banged herself hard enough to get a swelling. If she isn't acting like herself, then I recommend getting her to see the vet right away.

There can be several causes of a lump like this, including a seroma or hematoma from hitting her head on something, an abscess or infection, an enlarged lymph node or salivary gland (if the lump is lower toward the jaw), a tumor or cyst, among a few others. Since some of these issues need veterinary care to resolve, I would recommend that Fifi get checked out by a vet. After physical examination, the vet may recommend a needle aspirate and microscopic exam or x-rays to see what the cause of the lump could be.