Can docs easily diagnose lipomas simply by feeling and examining it?

Sometimes: The majority of subcutaneous lipomas(fatty tumors) can be diagnosed by physical exam. Sometimes they can be also seen on ct scan, MRI , or ultrasound.

Usually: Lipomas are generally a rubbery soft growth under the skin that move around somewhat when touched, and may grow slowly over longer time periods. They do not change & become cancerous. Firmer, harder, deeper lesions may need further evaluation with ultrasound or ct scan.

Soft fatty mass: Lipomas are common fatty mass or tumors. They come to the attention of a patient when they grow, cause problems by being bumped or rubbed, or if the patient loses weight and the lipomas becomes more prominent. Most of the time the surgeon will recommend removal and a pathology exam of the specimen is done to confirm the diagnosis. Very occasionally we will get a surprise with the pathology report.