ʻO ka thrombosis vein hohonu kekahi o nā maʻi lapaʻau maʻamau. Ma ke ʻano laulā, ʻo nā hōʻike lapaʻau maʻamau penei: 1. ʻO ka pigmentation o ka ʻili o ka lālā i hoʻopilikia ʻia me ka maneʻo, ʻo ia hoʻi ma muli o ke ālai ʻana o ka hoʻi ʻana o ke koko o nā lālā haʻahaʻa, ka paʻa ʻana o ke kūloko a me ka nele o nā meaʻai lawa, e hopena ana i ka ischemia ʻili a me ka hypoxia o nā lālā haʻahaʻa a me ka maneʻo a me ka pigmentation. 2. Nā hōʻike embolism cerebral acute e like me ka palena koke o ka neʻe ʻana o nā lālā, aphasia, coma, a pēlā aku. ʻO kēia ma muli o ka hemo ʻana o ka thrombosis vein hohonu i nā lālā haʻahaʻa a me ka ālai ʻana o nā veins intracranial, e hopena ana i nā hōʻailona ma luna. 3. ʻO ka dyspnea koke, ka hāʻule ʻana o ka hanu, ka hāʻule ʻana o ka venous thrombus a me ka ālai ʻana i nā kīʻaha koko nui i loko o nā māmā, e hopena ana i ka pulmonary embolism acute.