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.
This is one of the most common causes of knee pain around the front of the knee. Donât be fooled by the name. It is just as likely to affect those with sedentary lifestyles as it is active people. There are a number of causes including kneecap movement problems, flat feet and muscle imbalance.) Osgood Schlatters. This is the most common cause of knee pain in teenagers, especially males. It usually develops after a growth spurt due to the bones growing faster than the muscles, causing friction. This can lead to a bony lump forming just below the patella.