There is a raised hard lump on the back of the thigh that doesn’t hurt or itch, which may be a lipoma, sebaceous cyst, common wart and so on.
1. Lipoma: it is a tumor of normal fat-like tissues, which occurs in the limbs and trunk. They are clear, lobulated, tough and painless. The growth is slow, but it can reach a huge size.
2. Sebaceous cysts: after the sebaceous gland ducts are blocked, the contents of the glands accumulate, forming a round swelling under the skin. The contents are mostly grayish-white curd-like, with a foul odor. The actual fact is that there is a lot more than just a couple of different types of warts, and they’re not as well known as the ones that you’ve got.
3. common warts: benign proliferative disease caused by human papilloma virus infection of the skin and mucous membranes, can occur in any part of the body. The skin rash manifests itself in the form of pin-cap-sized grayish-white flat papules with a rough surface and a hard texture. Generally speaking, there are no special complications, but if repeated friction in daily life, etc., may lead to its ulceration and cause significant pain and discomfort.
There is a raised hard lump on the back of the thigh which is painless and itchy, but it can also be caused by subcutaneous fibroma, syphilis and so on. If it does not go away for a long time or affects the appearance, you can go to the hospital for diagnosis and treatment under the guidance of a professional doctor.