Cats infected with viral diseases, such as cat plague fever and cat cold, will lead to shortness of breath, asthma and even respiratory diseases such as chronic bronchitis and pneumonia. At this time, the cat's body will gradually lose weight, even weak and listless.

Viral infection usually needs to be treated in a pet hospital. Doctors may inject antibiotics and hormones into cats, and encourage owners to give cats regular physical examinations to keep the environment clean and reduce the possibility of disease transmission.

2, allergic reaction

Cats may have allergic reactions to certain foods, bacteria, drugs, smells, etc. , leading to wheezing, respiratory swelling, itchy skin and other manifestations. If the allergic reaction lasts for a long time, the cat's physical condition will gradually deteriorate and become emaciated and listless.

The treatment of allergic reaction is relatively simple, and it is usually necessary to look for allergens to avoid contact with cats, and at the same time give them anti-allergic drugs to alleviate allergic reactions.

3. Heart disease

Heart disease is one of the common causes of dyspnea and asthma in cats. Some common heart diseases in cats, such as heart failure and cardiomyopathy. It will lead to symptoms such as hypoxia and myocardial lesions in cats, leading to emaciation and weakness.

Heart disease needs professional treatment in a pet hospital. Doctors may give metabolic drugs, cardiac drugs and necessary surgery to cats, and monitor the cat's heart condition.

4. Parasitic infection

Long-term parasitic infections in cats, such as paragonimiasis and incubating worms in testicles, can also cause symptoms such as asthma and shortness of breath, accompanied by listlessness and emaciation.

The treatment of parasitic infection is also relatively simple, and it is usually necessary to carry out electron microscope detection, antibiotics and anthelmintic treatment in pet hospitals, and regular physical examination and anthelmintic treatment of cats are the key measures to prevent parasitic infection.