My boar has the bumps pictured on his under side and nose. They dont bother him but im not sure what they are.
Answer I am not a veterinarian and can not make a medical diagnosis over the internet.
These appear to be bug bites. Bugs can't bite on pigs in most places, but the belly, nose, behind the ears and inner legs are softer spots where bugs can bite. You can use any soothing ointment made for people on your pig. Keep an eye on them, make sure they don't become infected.
Pot-bellied or other miniature pet pig care, including diet, housing, training, health care. Can provide information about zoning, adoption, supplies, and organizations. Questions about any kind of pet swine are welcome!
Owning, raising, and caring for small pet swine, including "Vietnamese" pot-bellied pigs since 1992.
Organizations Pigs of Great Fortune; FAREC; PigCollaborative