O'Hara celebrated the news by scoring his third goal in four games for Wolves in Sunday's vital 3-1 success over Wigan at Molineux.
Son Harry was born 10 weeks premature in mid July, weighing just four pounds four ounces, and then spent five weeks in a special unit at a midlands hospital.
Hungry Wolf: Jamie O'Hara hopes to keep on improving at Wolves
But scans at the latter end of last week were positive and O'Hara revealed his joy after helping Wolves to their first win in nine games.
He said: 'It is good news about Harry. We had a couple of scans the other day just to get the all clear. He had a few head scans and he has been given the all clear.
'Hopefully now we can just feed him up, get him on the burger and chips, and he will be flying around like the other one (Archie)!
'It is a massive relief. It has been hard for the last three months. Being in and out of hospital was really tough for us, myself and the missus. But we've come through that as a family and it is great for us.'
Happy family: O'Hara and his fianc?e Danielle Lloyd are relieved to have two healthy children
O'Hara added: 'Is Harry out of the woods completely? Hopefully. He had some bright spots on the brain and that is all cleared up.
'He had a problem with his heart and that is all cleared up now. Hopefully he will be running around like the other one causing mayhem.'
O'Hara added: 'My fiance keeps telling me to dedicate the goals to him. I just keep forgetting. I need to get another tattoo of him so I can dedicate it to him.'
On the football front, O'Hara is relishing his free role in the hole behind striker Kevin Doyle.
The former Tottenham player said: 'It was definitely my most important goal for Wolves against Wigan. We are one of those teams, once we go 1-0 up, it settles everyone down and we start playing and the fans gave us a break and got on our side.
'Their keeper (Ali Al Habsi) was outstanding. He stopped me scoring a hat-trick.
'I said to the boys before the game "I'm going to be like Robin van Persie and score a hat-trick" and I had a chance to do so as well.
'He (Al Habsi) pulled off two tremendous saves to stop me doing it but I got my goal and hopefully now I can just keep getting on the scoresheet.
'Playing in the hole, you get chances and, if you get in the right areas at the right time, the ball does come to you.
'At the moment I've got the eye for the goal and hopefully I can just keep doing that and keep putting in good performances.'
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Source: Daily Mail
Source: Daily Mail