My cat has a sudden hole wound on leg, no pain. What could it be?

Hello I can't tell from the picture how deep that wound is but it does look infected and there's underlying tissue and possibly muscle exposed. I recommend takinh your cat to see a veterinarian as she could be licking at the site when you're not watching and causing further infection. It may need to be closed or the vet may decide it should stay open (with some infected wounds closing can cause an abscess to form) and put her on antibiotics and pain medication. She might also need an E collar to prevent her from licking the area further.

Thank you for using Petco Pet Education Center, formerly Petcoach! Without seeing a photo of the cut, it is difficult to know what is going on. Either a fall or cut may have caused the wound. I don't know how severe it is, but if the bleeding cannot be stopped or you think Moya is in pain, I recommend having her seen by a vet as soon as possible. If the wound is healing, I recommend trying to keep the area clean and dry. You should monitor the area for swelling or discharge as these may be sign of an infection. I hope this helps!

Poor kitty! Since this wound looks rather deep and he is limping, I would definitely recommend having him seen by a veterinarian - it looks like he will probably need an antibiotic and possibly an anti-inflammatory or other pain medication, in order to treat the injury and help it heal.

It appears that the muscle layer is exposed in this wound, meaning that there could be some deeper trauma in the area. Often these wounds can result in deep abscesses if not treated. It would be best to bring him to a vet for wound cleaning, flushing, and exploration. If sutures are needed, wounds are most successfully treated within the first 6-8 hours. Poor guy!

Thanks for using Petco Pet Education Center, formerly Petcoach! It is unclear why he would have an open wound like that but likely due to some form of trauma. However, this does warrant an evaluation as soon as possible for further assessment and treatment. This will most likely need local treatment and possibly wound closure as well as antibiotics and pain control medications. Good luck and have a great day!

Thanks for using Petco Pet Education Center, formerly Petcoach! It is not possible to know this just based on this picture. However, with a history of possible trauma and the presence of blood then a fracture is possible. Just based on the presence of blood and the possibility of a fracture, I would highly recommend you have him evaluated by a veterinarian for further assessment and treatment. They would be able to check what seems to be the issue so that it can be treated accordingly. Good luck!

That leg looks very painful and the puncture may have abscessed (infection). This can be due to a fight with another cat, an injury, or even an issue with how the leg is healing. It would be best to bring Billu to a vet ASAP as the wound will need to be thoroughly flushed out and then treated with a course of antibiotics and pain medications to help him recover.