Is the room too hot or too cold?
Your Orchid prefers warm temperatures of 70-80 degrees during the day, and temperatures down to 60-70 degrees at night.
Is the plant too dry or too wet?
If the moss in your Orchid’s pot has dried out completely, your plant could be dehydrated. Give your Orchid a good soak in order to rehydrate.
Is your orchid sitting in water?
The roots could be rotting. Check the roots to see if they are mushy or discolored. They should be firm and greenish. Your Orchid is prone to root rot if it is left sitting in water for an extended period of time. Keep the moss moist at all times, but never soggy. Always dump out excess water that accumulates in the pot after watering.
Are you using too much fertilizer?
Are you fertilizing more often than the instructions on your fertilizer bottle state? That could lead to fertilizer burn, causing both leaves and flower buds to die. Always follow directions on your Orchid fertilizer bottle, or to be safe, you can dilute the fertilizer with water to half the recommended strength.