JOHOR BARU: The 11-year-old boy who was allegedly abused by an assistant warden at a private religious school in Kota Tinggi is not responding well to treatment and may lose his right arm.

It was previously reported that the boy had received blood-thinning medication to treat infections in his right arm and left shoulder, and the family will know by 8pm Tuesday if the right arm needs to be amputated.

It is learnt that that the blood clot in the left shoulder is dissipating following the treatment.

The boy's aunt Dzuraidah Ahmad, 38, said the boy's condition had not improved and his right arm and fingers have turned black again after showing signs of recovery on Sunday.

"We pray for his recovery and are ready if the doctor decides that an amputation is needed to save his life," she said when met at Hospital Sultanah Aminah on Tuesday.

She added that doctors told them that only the forearm below the elbow would be amputated if needed.

Earlier, Johor Permaisuri Raja Zarith Sofiah Sultan Idris Shah visited the boy at the hospital's high dependency ward at noon.

She was there for about 40 minutes to learn about the boy's condition and also spoke to his family members.

It was reported that both the boy's legs had to be cut off to save his life as blood cells and tissues had been destroyed by a bacterial infection.

Doctors later found that his right hand had turned black due to a bacterial infection and blood clots had started to form on his left shoulder.