Your description of your dog's situation is very general in the sense that there very well might be more going on than meets the eye. The apparent swelling of the scrotum could be from a problem with the testicles or it could be related to the swollen abdomen you are describing. The loss of appetite and lethargy could also be related to these very general signs.
Due to the uncertainty of the causes of these signs, you would be wise to have your dog examined by your veterinarian in order to get more answers. The exam could include blood work and possibly some abdominal X-rays.
NOTICE: The information provided on this site is not a substitute for professional medical advice,
diagnosis, or treatment. Never delay or disregard seeking professional medical advice from your
physician or other qualified health provider because of something you have read on Wellsphere.
If you have a medical emergency, call your doctor or 911 immediately.