There are several potential reasons why your blinds might have a body odor smell:

Poor hygiene: If you or someone in your home has not been washing their hands properly before touching the blinds, the oils and bacteria from their skin could be transferred to the blinds and cause a bad smell.

Accumulated dirt and grime: If the blinds have not been cleaned in a while, they may have accumulated dirt and grime, which can contribute to an unpleasant smell.

Mold or mildew: If the blinds have been exposed to high humidity or damp conditions, they may have developed mold or mildew, which can cause a musty or moldy smell.

To eliminate the odor, you will need to clean the blinds thoroughly. Start by dusting and vacuuming the blinds to remove any dirt and debris. Then, mix a solution of warm water and mild dish soap and use a cloth or sponge to wipe down the blinds. Be sure to rinse the blinds thoroughly with clean water and dry them completely before replacing them. If the odor persists after cleaning, you may need to use a disinfectant or deodorizing spray. If the problem is mold or mildew, you may need to use a special cleaner designed to remove these substances. If the problem persists or you are unable to identify the cause, it may be best to consult a professional for further assistance.