I don't think anything is terribly "wrong" with your pup. They just get these things sometimes. Jeff had a good point. Where has he received his previous vaccinations? Most are given in the scruff area but some vets do give them in the flank or above the pelvis. It could very well be a reaction to the injection site. It would be just as you described it and sometimes it can cause the dog some pain. My gsd had one and it disappeared on it's own after 6 months. There isn't much you can do for it, though the inflammatories help sometimes. The only thing that makes me wonder, is that it wouldn't get an open sore like you say it has now.
The roundworm isn't from the raw meat, but probably from the mud where the eggs could be. I doubt the lump is related to the worms. Roundworms live inside the intestines only. That could have been causing him diarrhea or soft stools though.

It probably was a spider or bug bite if you say that it has a ruptured area in it now. The irritation, poison injected, and swelling from the bite would have caused the lump and now it's draining as it heals. I would clean it with some hydrogen peroxide or iodine if your dog lets you (it might burn) and try keep him from licking it, which could irritate it more or cause infection. No need to bandage- you want it to drain. You could also apply hydrocortisone cream around it also. This will help reduce the swelling but your dog might lick it off, so apply it and then take him for a walk so it can be absorbed before he removes it. Don't get it in the open wound, just around the lump. Hopefully, it will just heal and go back to normal on it's own.
If he has to have surgery to remove it in the future, it all depends on how large and where in the layers of skin the lump is located to determine if local anesthesia is an option. If they use local, they will probably lightly sedate him if he's hyper. The procedure will still take as long to use local than if they were to completely anesthesize him, which is most likely what they'll do.
Keep us updated!

Rashmi,
The type of anesthesia used would entirely depend on the type of surgery. Local anesthesia provides temporary analgesia or pain relief to a specific bundles of nerves (like when the dentist gives you Novocain before drilling a cavity). From experience, local anesthesia, also called local analgesics, only reduce pain sensation to a point. Another thing is that they don't sedate the patient, and animals do not lie still even with local analgesia 90% of the time. Your pup would also need a sedative. But with all this said, it truly depends on the procedure.
A parasite related possibility for this lump is CLM (cutaneous larval migrants)which are caused by Ancylostoma caninum (hookworm). Hookworm can be given to a puppy via four routes: ingestion, in utero, transmammary or through the skin. The latter causes CLM. But these are very specific tracks on the and it is zoonotic (transferable to people). So I doubt your pup has this from the way you describe the irritation. Other clinical signs of hookworm are anemia, respiratory issues and diarrhea. To diagnosis it, a simple fecal test is run.
I hope everything with your pup s better this week! <img src="/ubbthreads/images/graemlins/smile.gif" alt="" />

The first time I was concerned about my pup's digestive system, he wouldn't eat for about 2 days and didn't poop for the same length of time, n before he stopped pooping his stool was as thin as water. The vet gave me 10 Metronidazol tablets of 500mg each to give him twice a day for 5 days to firm up his stool and clean out his system.

It always takes a lil while for dogs to adjust, some longer than others. The first time I gave Cujo a raw egg his poop had the texture of, yes, you guessed it... a raw egg! He went thru about 3 or so days of varied stool firmness before he got used to it. Everyone else covered pretty much everything you need to know, but figured I'd mention the Metronidazol if that's something your vet feels suitable to prescribe if your pup's stool doesn't return to normal soon.

Hi Guys,

THE STUPID LUMP HAS DISAPPEARED. THE SKIN IS ALL DRY BUT WITH A MARK. The skin looks bruised at the place on the lump. God knows what it was??

To answer to Emily’s question, His stool showed Ringworms. I don’t know if they do test for one specific worms or a general tests for all possible worms.

I am still taking him next weekend for his second dose and a check on that Ex-lump again. I am monitering him when I am home very closely....starting on BARF SOON BUT THIS TIME I will do it very slowly (perhaps I will take 1 to 2 weeks before I completely change his diet.)

YOU GUYS ARE THE BEST. I KNOW I WILL NEED CONSULTAION ON LOT OF THINGS as the time passes and I know where to come.

Regards,
Rashmi

Hi Rashmi,

My puppy (he is 8 and 1/2 months now) has had the exact same type of lump that you described -- two different times. Each time the large marble sized lump on his lower stomach went away on its own and left a bruised skin area (which also went away after a few days). I have no idea what the lumps were but I keep watching him to see if they will return.

Please post if you find out what the lump was -- I will do the same.

Mike

I will.

Thanks,

Rashmi