Bleeding marks when scratched by a cat through pants indicate that the dermis has been damaged and bacteria may take the opportunity to enter and cause infection. The wound needs to be disinfected. First, wash the wound with soap and water for more than 15 minutes, then apply iodophor and alcohol alternately twice without applying a band-aid. As long as the cat that catches people has no obvious symptoms of rabies, such as drooling, being afraid of light and water, howling, etc., and is in good health, and has been vaccinated and dewormed on time, and is not caught for no reason, it does not need to be vaccinated.

What to do if you are scratched by a cat:

1. Clean the affected area. In daily life, if the human body is scratched by a cat and there are blood marks, the affected skin can be cleaned with soapy water under the advice of a doctor. After the skin is kept dry, medical iodine can be used for disinfection.

2. Apply medicine. If you are scratched by a cat and fail to seek medical treatment in time, allowing bacteria to invade the body through the skin of the affected area, you can apply erythromycin ointment, mupirocin ointment, compound polymyxin B ointment and other drugs for treatment under the guidance of a doctor.

3. Inject vaccines. When a cat scratches you with a serious blood mark, you can inject rabies vaccine into the skin as directed by your doctor to prevent rabies.