The risk is considerably higher than forehead contact because of the moist environment and the proximity to mucous membranes.

2. Exposure to Bodily Fluids

In the hours following death, certain fluids can leak from the mouth and nose as the body’s muscles relax. These fluids may carry bacteria, viruses, or toxins. Contact with them during a kiss can be a direct route of transmission.

3. Decomposition-Related Hazards

The oral cavity is one of the first places where decomposition begins. Anaerobic bacteria multiply rapidly, producing unpleasant odors and potentially harmful gases. In warm conditions, this process accelerates, making close contact with the lips unsafe.

4. Chemical Risks from Embalming

If the body has been embalmed, chemicals like formaldehyde may be present on the lips or in the mouth. These can cause irritation, chemical burns, or allergic reactions, especially on sensitive lip tissue.

5. Safer Alternatives

Speak your final words while standing close.

Touch the hands, shoulder, or hair instead of the lips.

Place a personal item or flower near the body.