Dozens of things: If this has been going on for a long time, if it's associated with fevers, nausea, vomiting, constipation, diarrhea, cough, difficulty breathing, or any other symptoms, see your doctor for diagnosis. If it's just an isolated pain and he's otherwise fine, he probably bruised himself or pulled a muscle, so watch and see if he gets better.
Answered 4/19/2017
5.6k views
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
7 doctors weighed in across 3 answers
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question