I wash my body completely in fard ghusl.But some traces of semen remained on my leg.Is my ghusl valid?

All perfect praise be to Allah, The Lord of the Worlds. I testify that there is none worthy of worship except Allah, and that Muhammad is His slave and Messenger.

The condition of the validity of Ghusl (ritual bath) from Janabah (sexual defilement) is for water to reach the whole skin. So, if you overwhelm your body with water and it reaches all parts of your skin, then your Ghusl is valid, and your purification is complete. If any traces of semen remain and if it does not prevent water from reaching the organ, then it is something that does not prevent the validity of purity.

It appears to us from your previous questions that you suffer from whispers regarding the matter of purification, so we advise you to turn away from them because this is the best way to treat them, along with Du’aa (supplications).

Allah knows best.