Brief Answer: Could you provide some more information? Detailed Answer: Hi and thank you so much for this query. I am so sorry to hear about this knot that you have described. I will like to have some more information in order to be able to suggest what the possible causes could be. 1. For how long have you had this? 2. Has it been increasing in size over time?Hi and thank you so much for this query. I am so sorry to hear about this knot that you have described. I will like to have some more information in order to be able to suggest what the possible causes could be. 1. For how long have you had this? 2. Has it been increasing in size over time? 3. Can you upload an image for appreciation? 4. Do you have any problem with this limb? Most knots under the skin are lipomas. They are rather soft in consistency and move freely under the skin. They are painless and generally cause no problems unless their sizes or location become a nuisance to neighboring structures like nerves and blood vessels. If they are not symptomatic and you are comfortable with, there is no need to take the off. In all, provide some more information. Most common cause is a lipoma that generally presents no danger to the body. I hope this helps. I wish you well. Hope to hear from you for more insights. Dr. Ditah, MD 3. Can you upload an image for appreciation? 4. Do you have any problem with this limb? Most knots under the skin are lipomas. They are rather soft in consistency and move freely under the skin. They are painless and generally cause no problems unless their sizes or location become a nuisance to neighboring structures like nerves and blood vessels. If they are not symptomatic and you are comfortable with, there is no need to take the off. In all, provide some more information. Most common cause is a lipoma that generally presents no danger to the body. I hope this helps. I wish you well. Hope to hear fro you for more insights. Dr. Ditah, MD

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