To be sure, rule out other possible causes. Other Symptoms Leaves curl down on the edge . Variegated leaves turn entirely green . Flowers turn brown or have brown spots on them . Treatment Remove your African Violet from direct sunlight.
Violets perform best when they receive plenty of indirect sunlight.
You can achieve this by putting your Violet in a window where it gets light most of the day. Adjust your blinds or use sheer curtains to filter out some of the light. If you have access to a light meter, luminosity should be 10,000 to 12,000 lux or about 900 to 1100 foot candles . As an alternative, you can get a reasonable approximation of the light value by simply holding your hand over your Violet during the time when it is receiving the brightest light. If you can barely see the shade of your hand over the Violet, then it is getting the correct amount of light.