The reasons why dogs like to lick the penis:

1. It may be that the urinary system is infected by bacteria or fungi, causing itching of the skin on the dog’s penis. , so it will lick the lower part frequently.

2. It may be the dog’s normal behavior of cleaning the body. There is urine residue on the dog’s penis, and the dog will also lick the penis in order to clean the body.

3. It may be a sign that the dog is starting to go into estrus. The stimulation of hormones in the body during estrus causes the dog to lick its reproductive organs.

4. If it is a male dog, it may be suffering from scrotumitis or penitis. If it is a female dog, she may suffer from scrotal inflammation and scrotal edema, which will lead to licking behavior.

5. It may be that the dog is suffering from bladder stones, urethral stones, cystitis and other diseases, and will lick the bottom.

Methods to prevent dogs from licking their lower parts:
1. Keep the dog’s living environment clean, do a good job of cleaning the body, and avoid licking caused by environmental factors.

2. Provide the dog with a healthy diet, improve the gastrointestinal tract, promote the health of the urinary system, and avoid penile infection.

3. If the dog is in heat and is excessively licked, it needs to be taken to the hospital for examination. If necessary, it can be neutered.

4. If it is caused by various diseases, you need to seek medical treatment as soon as possible, and wear an Elizabethan collar to prevent the dog from continuing to lick and prevent secondary infection.