Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concern..
As per your complain pain in knee and especially front of knee and round the back can be due to causes like Chondromalacia, Bursitis,
Patellar Tendonitis,
Arthritis,
Osteochondritis, Ton Meniscus etc..
I would suggest you to consult an Orthopedician and get evaluated and a thorough clinical evaluation and investigations like x ray, CT Scan , blood tests, Electromyogram etc as per suspected cause can help in diagnosis and treatment can be planned accordingly..
You can be advised to take anti-inflammatory painkillers, muscle relaxants, warm or cool compresses depending upon the cause,
physiotherapy to relieve and strengthen the muscles,
weight loss and avoiding vigorous workout and long hours of continuous standing or sitting..
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora.