The patient was taken to the Uppsala hospital on Monday afternoon. The hospital said in a statement that there were "minor suspicions" the patient was infected with Ebola.
Later in the afternoon, a hospital spokesperson told Sveriges Radio that the patient did not have the virus.
On Monday night, a man who arrived at Stockholm's Arlanda airport was also feared to have been carrying the virus.
He was rushed to isolation at the Karolinska University Hospital in the suburb of Huddinge when customs officials noticed he had a nosebleed and was vomiting.
Experts announced on Monday morning that the man was not infected with the virus, which has killed over 4,000 people in West Africa.
Sweden's Health Minister Gabriel Wikström announced last week that Sweden would be adding a further 100 million kronor ($13.89 million) to its aid efforts, taking its overall spending to around 240 million kronor.
Villagers in Sierra Leone dealing with the Ebola outbreak. Photo: Michael Duff
Part of the money will be used to help Swedish hospitals send more medical volunteers to affected countries in west Africa, while maintaining services in Sweden.
The move followed criticism that Sweden wasn't doing as much to tackle the crisis as its European neighbours. Sweden is now set to become the fifth largest donor in the world.