What should I do if my kitten's belly swells like a balloon?

Possible causes:

1. Overfeeding: Kittens in their rapid growth period may overeat and have inadequate digestion. Since their digestive systems are not fully developed, they may experience abdominal swelling after a meal. To address this, feed your kitten in small portions throughout the day and consider giving it probiotics to regulate its gut. Gently rubbing its belly can also help promote gastrointestinal movement.

2. Constipation: Newborn kittens cannot defecate independently and need their mothers to lick their anuses for stimulation. If the mother cat is weak or neglects her kittens, constipation may occur. To help your kitten defecate, use a wet cotton swab or tissue to gently wipe around its anus.

3. Feline infectious peritonitis: This serious disease can cause abdominal swelling, lethargy, loss of appetite, and weight loss. If you suspect this, gently touch your kitten's belly. If it feels wave-like and resembles water, it's likely to have feline infectious peritonitis. Consult a veterinarian immediately for diagnosis and treatment.

Remember to always monitor your kitten's diet and health closely to prevent and address any potential issues.