Egypt's second faith is Coptic Christianity. Copts are heirs of an ancient Christian rite. Coptic Christianity was the predominant religion in Egypt until the 10th century when a lot of Christians diverted to Islam. Christianity itself was brought in Egypt by St. Mark in the middle of the first century AD.
Other possible causes of swelling behind the knee include abscesses (infections); tumors of the skin, soft tissue, or bones; bleeding; deep venous thrombosis (blood clot in the deep veins of the legs); or deformity of the joint after a fracture of any of the bones of your knee joint.
Pain behind the knee aka posterior knee pain can be due to a number of problems. Sometimes is develops gradually over time indicating and underlying knee condition and other times it develops suddenly due to an injury.ome people complain of a general achy back of knee pain, others find their leg movements may be restricted by swelling or there may be a sharp pain at the back of the knee. Here we will look at the most common causes of pain behind the knee.