Scott Disick in rehab

Scott Disick has reportedly checked into rehab for the fourth time.

The 32-year-old reality TV star, who has been struggling with drug and alcohol abuse for some time and split from long-term girlfriend Kourtney Kardashian in July, has decided to seek treatment for his issues, as her brother-in-law Lamar Odom continues to fight for his life after allegedly overdosing in a brothel yesterday (13.10.15).

A source close to the 'Keeping Up with the Kardashians' star said he is aware he needs to make some changes in his life for the sake of his and Kourtney's three children, Mason, five, Penelope, three, and Reign, 10 months.

The insider told E! News that he is taking the decision very seriously and wants to be the best father that he can be.

Scott, who last checked in a rehab facility in Costa Rica in March but left before completing his treatment, has also cleared his schedule and has no upcoming work commitments so he can focus on his health.

Meanwhile, Lamar, 35, is still in a coma in the Intensive Care Unit of the Sunrise Hospital in Las Vegas after being found unconscious at the Bunny Love Ranch in Nevada.

The former L.A. Lakers player's soon-to-be ex-wife Khloé Kardashian, 31, is "devastated" and is maintaining a bedside vigil alongside her mother, Kris Jenner, and pregnant sister Kim Kardashian West, 34.

While the pair, who split in December 2013 after four years of marriage, signed their divorce papers in July, a judge has yet to make it official and they are still legally married.

Legal expert Troy Slaten said: "It is not final until it is final. They are still a married couple in the eyes of the law."