EU regulators also acknowledged a link between unusual clotting and the coronavirus shot in "very rare" cases, but upheld their endorsement of the drug's use in all adults.
The drugmaker also noted that, according to the latest data, the vaccine was well-tolerated, and no safety concerns related to the vaccine were identified.
THL recommends seeking treatment "immediately" for those experiencing severe, noticeably worsening headaches or very severe bruising of the skin or mucous membranes.
France, Italy, Latvia, Spain, Germany and Bulgaria announced they would restart vaccinations, while Sweden said it needs "a few days" to assess the report before lifting the ban.
Health Minister Jens Spahn said Germany had recorded seven cases of thrombosis in cerebral veins among 1.6 million vaccinations with the AstraZeneca jab.