This can also be a result of underlying medical issues, so we do recommend a thorough exam and testing to rule out a medical cause, especially if this is a new behavior. (allfelinehospital.com)
Animals can come to us from unknown origins, sometimes with underlying medical issues and conditions, so it is important that you protect your family pets as much as you can. (fohari.org)
A complete physical examination and x-rays can help check for possible underlying medical issues that may suggest that a breeding shouldn't happen. (petwave.com)