Lamar Odom has checked himself into rehab.
More than one year after Odom was hospitalized for a near-fatal overdose, the 37-year-old former NBA star recently chose to seek professional help.
"Lamar checked into rehab last week. It was his decision to go back," a source tells ET. "He wants to get better and recently realized he needs to do this for himself, and especially for his children. He knows he needs help and unfortunately, this is something he'll need to take care of for the rest of his life. Drug and substance abuse is a serious issue."
The source adds, "His family and friends are standing by him through this and know he will come out as a better person."
NEWS: Khloe Kardashian and Lamar Odom's Divorce Has Been Finalized
Odom will be staying at a medical facility in San Diego, according to E! News, who was first to report the news.
In October 2015, Odom was discovered unresponsive at a brothel in Crystal, Nevada. He subsequently spent several weeks in the hospital, after which he began recuperating at a private rehabilitation center in Calabasas.
During his recovery, Odom appeared to suffer several setbacks in regards to his health and sobriety. In May, he was photographed drinking at a bar inside a Los Angeles mall, and in July, he was allegedly removed from a Delta Airlines flight for being intoxicated and vomiting on the plane. The next day, he was spotted partying at a gentleman's club in Queens, New York.
WATCH: Lamar Odom Spotted at Strip Club in NYC Following Troubling Airplane Incident
During his frightening medical incident, Odom's ex-wife, Khloe Kardashian, withdrew her petition for divorce in order to oversee decisions regarding his medical care. At the time, she was adamant that the two had not reconciled, and this past May, the 32-year-old reality star re-filed her divorce paperwork.
The two reached a settlement in October and their divorce was finalized by a judge on Friday. Their marriage will officially be terminated on Dec. 17, according to documents obtained by ET. For more on the former couple's challenging divorce, watch the video below.