A cat's constant purring can be caused by various reasons, including anxiety, fear, a desire for companionship, obesity, pharyngitis, rhinitis, or tracheitis. Firstly, if it's just purring without any other abnormal symptoms, it's normal and generally nothing to worry about. However, if the purring is accompanied by nasal congestion, coughing, or a sore throat, it's recommended that the owner take the cat to a reputable veterinarian for treatment as soon as possible.
If a cat is unfamiliar with its surroundings, it may become nervous and scared, which it will express by purring and growling. It is recommended that the owner soothe the cat and calm it down. Once the cat's mood returns to normal, the purring will gradually subside.
