If your cat has an intestinal blockage it's most likely because they ate something they shouldn't have. Most things pass through the digestive tract just fine, but sometimes an object is too big to get through the intestines. When this happens, it's called foreign body obstruction. Another common cause of cat bowel obstruction is when a cat swallows string, thread or tinsel. When this happens it is called a linear foreign body obstruction. In either case, your pet may require surgical care to remove the material.

When a cat swallows, food goes first to the stomach then through the small intestines, the large intestine, the colon and finally out the anus as feces.

But when the intestines are blocked, nothing can get through. If the cat continues to eat and drink, then fluid and food will build up behind the obstruction, causing swelling, inflammation and distention of the intestines. If this occurs in the part of the intestine closer to the stomach, it can cause vomiting. If it happens closer to the tail, it can cause diarrhea. If the intestines are completely blocked, the condition is considered life threatening unless treated.

Signs of a possible intestinal blockage may include:

• Vomiting, either food or liquid
• Diarrhea, which can be bloody
• Pain in the belly
• Loss of appetite
• Loss of energy
• Hiding
• Straining in the litter box to defecate
• Smaller amounts of feces in comparison to normal
• Increased aggression
• Pawing at the face (occurs when string is swallowed and has wrapped around the base of the tongue)

If you notice any of these signs, call your veterinarian immediately.

Your veterinarian will use a combination of factors to diagnose your cat. They will rely on any history you have of your cat's behavioral changes and any sick behaviors you notice (hiding, loss of energy, vomiting, etc.). The veterinarian will also conduct a complete physical exam and may recommend a combination of laboratory blood, urine testing and X-ray or abdominal ultrasound to check for any indications of obstruction.

Partially blocked intestines can sometimes be treated without surgery. In these cases your cat will be hospitalized, given fluids and pain medications, and monitored to see if the blockage passes on its own. If the blockage does not pass, then surgical removal of the foreign body will be required.

After surgery, you will likely be discharged with medication. Medication can include pain medication, anti-nausea medication and possibly antibiotics. Give all medications as prescribed and follow all post-surgical instructions completely. Your cat will likely have to wear an Elizabethan collar to prevent them from opening their stitches back up. Your cat will need to rest following surgery, and you may need to restrict your cat's activity.

It is also very important to feed your cat bland, easily digestible food that won't overtax the digestive system. Your vet will most likely recommend therapeutic food to help support the digestive system while it heals.