Why is my cat's poop black after giving birth to her kittens?

This could definitely be because of the change of food but the black color concerns me that there may be digested blood present. Since she is so young and tiny, I would consider this urgent so I would try to get her into the vet soon. I would that she may become dehydrated or sicker if it isn't addressed. Your vet will likely want to run a fecal on her to check for any intestinal parasites. They may also want to know the food you are feeding her. I hope this helps and she starts to feel better soon.

There are a number of concerns here but the development of blacker stools can be indicative of internal bleeding and requires urgent veterinary assessment and a check up of kidney function and dental health (swallowed blood can be detected in stools). It sounds like she has also suffered from colitis and/or pancreatitis (soft, slimey, malodorous) in the past and diet change to a high fiber, low fat complete food may help depending on the findings of her physical exam and blood/urine tests

Black stool can indicate that there is blood in the stool or something the pet ate disoclored the stool. If it only happened once and isn't consistently seen, then I wouldn't be too concerned about it. Just keep an eye on things moving forward, and if seen consistently then it's best to get Bella's stool tested by your vet. Best wishes and take care.

It looks like the one kitten may have a little diarrhea, which isn’t too concerning as long as the kittens are nursing well, gaining weight, and the stools form up a bit in a day or two. The black hard stool can be normal for the first stool passed, but I would keep a close eye on momma to make sure she is cleaning the kittens well. One of the best ways to make sure all kittens are thriving is to weigh them daily using a gram scale - they should gain every day.

Black or tarry stool is a serious and concerning symptom that can sometimes indicate a bleed in the stomach or upper GI tract. Other issues such as parasites, food allergies, or ingestion of certain items may also cause the stool to darken or change colors. If Rowan continues to act oddly, has additional dark or tarry stool, or shows new symptoms of illness, seeking veterinary care in person ASAP is best.

Yes liver can cause very dark stools. But if this continues once she is on her regular cat food I would be worried something else could be going on. Black tarry stools can be caused by ulcers in the stomach. If Stella continues to have dark stool I would have her evaluated by her veterinarian.

Black stool is concerning as that may indicate a bleed in the upper GI tract such as the stomach. If he is also vomiting and has had this ongoing for several days it would be best to seek out veterinary care in person ASAP.