The neutering of our pet friends at home is considered compulsory by most of us, but the neutering of our pet friends on the street is confusing. Since the neutering and care procedures, which are the duty of the municipalities, unfortunately, do not work properly or are insufficient in many areas, the neutering process is usually undertaken by volunteer animal lovers. Due to their large numbers, the struggle of our pet friends on the street, unfortunately, poses a problem both in terms of feeding and sheltering themselves and raising their babies. So, what are the benefits of neutering for them? Since the habitat of stray animals is the streets, their needs such as nutrition or shelter can’t be met due to the increasing population. Aggression during the heat period is prevented. Inflammation of the uterus, which is most common with ovarian or breast cancer, is prevented.  Uncontrolled births are prevented. These precautions control the number of our friends and their health. Life expectancy increases above average with neutering. If mating is also considered, the possibility of our pet friends, whose immunity decreases during the heat periods, catching various diseases corresponds to a very high rate. In this way, infection outbreaks and epidemic diseases are prevented.