Lamar Odom may require months of rehabilitation to recover from his medical crisis, TMZ reported late Sunday, citing doctors. The former NBA star was hospitalized last Tuesday after being found unconscious inside a Nevada brothel.

According to TMZ, doctors have told Odom’s family and friends that he is likely to have suffered some undetermined permanent damage to his body after a suspected drug overdose. Cocaine and opiates were found in Odom’s system and he had suffered multiple strokes, People magazine confirmed.

Odom will reportedly have physical, speech, and other therapists helping him recover after the 35-year-old spent four days in a coma.

"Lamar still has a way to go," another source told People magazine. "It's promising, but he is not home-free."

Odom’s estranged wife Khloé Kardashian has reportedly vowed to be by his side as he continues his struggle to survive a near-death situation. However, according to Hollywood Life, the “Keeping Up With the Kardashians” star has decided not to tell him about his situation and keep him in high spirits. E! Online reported that Odom is making "great progress" but still has a long road to recovery.

“Neither Khloé or any of Lamar’s family have told him exactly why he’s in the hospital,” a source told Hollywood Life. “Now is just not the time to tell him the awful and embarrassing way he’s laying in that bed. That would be bad news, and everyone only wants good news flowing through Lamar’s head.

“Lamar can hear Khloé and understands everything she’s saying, but Khloé doesn’t want him to slip back into being depressed by telling him why he’s there,” the source reportedly said. “Lamar’s feelings are extremely sensitive and going there with him at this point would damage his spirit.”

Odom was taken off ventilator Friday night and was able to talk to people around him, but the interaction was "minimal." 

"He's woken up and his heart is stronger, but there is still concern about his organs," a source close to Odom's family told People magazine.