The following answer can only seek to give you some examples of why there may be pain in the cheekbone or face. Such questions are best answered by medical professionals and your doctor should always be consulted if you have a question about a certain medical problem or are worried about a medical condition. The head and neck are very complex and there are a number of conditions that could cause pain in the cheekbone.
Firstly the cheek in general has several sinuses and nerves running through or close to it. It could be that cheek or cheekbone pain is caused by the inflammation or infection of one of the sinuses. This is a very common ailment and can be treated by a course of antibiotics from a doctor.
The pain could be the result of a bang or knock to the cheekbone. As the cheekbone is usually quite a prominent feature on the face it can be quite sensitive when knocked, causing pain. If the cheekbone has not been broken then a bruise will usually heal in under a week. There may not be a lot of difference in the was a cheekbone will feel when it has been broken so, again, it is worth consulting a doctor if you believe your cheekbone has been broken as a medical professional will be able to diagnose this.
Thirdly, it is possible that pain in the cheekbone could be 'referred' from the mouth or nose. This is because the nerves in your face are interconnected. If you have a sore tooth, for example, then the pain may travel up the nerve, causing a sore cheekbone even though there is no issue with the cheek or cheekbone itself.
As previously stated, your doctor will be far more thorough is explaining and diagnosing any medical issues, including a sore cheekbone.
