Postpartum alopecia, also known as "dog losing hair after giving birth", is a common condition that affects many dogs after they have given birth to a litter of puppies. This hair loss is typically most noticeable on the dog's (abdomen), flanks, and inner thighs, and it can range in severity from mild to severe. In most cases, postpartum alopecia is a temporary condition that will resolve on its own within a few months.
There are a few different factors that can contribute to postpartum alopecia in dogs. One of the most common causes is the hormonal changes that occur during pregnancy and after giving birth. These hormonal changes can cause the hair follicles to enter a resting phase, which can lead to hair loss. Additionally, the stress of pregnancy and giving birth can also contribute to hair loss.