1. Subcutaneous cellulite: This is one of the most common causes. It usually occurs based on the pet's age, body shape and nutritional status. It does not require special treatment, just pay attention to whether there are changes.

2. Folliculitis or cyst: Infection or suppuration at the root of the hair or near the pores may also cause small bumps on the puppy's abdomen. The affected area should be cleaned and treated with antibiotics.

3. Lipoma: Long-term high nutritional status, overeating, etc. may lead to the occurrence of lipoma. If a fatty tumor is suspected, it is recommended to have it checked by your veterinarian to ensure there are no health consequences for your puppy.

4. Acne and cellulitis: It may also cause skin lesions similar to small pimples. A visit to a veterinary clinic is required for diagnosis and treatment.

5. The puppy may have a skin disease, because many skin diseases will have symptoms such as pimples.

6. Dogs may feel itchy after being bitten by mosquitoes, and small bumps will appear after scratching.

7. If the dog eats allergic food or comes into contact with allergens, it will cause allergies. The dog will scratch it constantly after feeling itchy, resulting in small bumps.

8. Small pimples appear on the dog’s belly. If it is hot in summer, the dog may have eczema.