Mold removal depends on the extent of the infestation. Here's a general approach to removing mold in your bathroom ceiling, along with safety precautions:
 

Safety First:

• Protect yourself: Wear gloves, a respirator mask, and eye goggles to prevent inhaling mold spores or coming into contact with them on your skin.

• Ventilation: Open windows and doors to create airflow and remove mold spores from the room.