Why Is There A Hard Area On The Top Side Of The Penis Shaft?
Most likely to be a calcified plaque.
Detailed Answer:
Hello,
Based on the facts that you have posted a painful hard area which you have noticed to developed on the shaft of the penis is mostly a calcified Plaque (Peyronie's disease). However, it can be confirmed only on clinical examination in person by a qualified Urologist. and doing Ultrasound Scanning of Penis.
Normally it gets resolved over a period of time of few months however if it causes difficulty in penetration of vagina during intercourse it has to be removed by surgery. Taking medication Pentoxifylline (Trental) orally for 6-8 months does help to resolve the issue. Please consult a urologist and get the Scanning of penis done to confirm the diagnosis.
Hope I have answered your query, please feel free to ask if you have more questions, I shall be happy to help you. Thanks.
Regards,
Dr. Patil