hemoglobin levels were dropping  it was a 4 when it should be a 14; Body started bruising - started on her legs and then spread to other locations; she was bleeding everywhere on her body; experienced a little bit of shortness of breath; got tired very easily; This spontaneous case was reported by a consumer and describes the occurrence of HAEMOGLOBIN DECREASED (hemoglobin levels were dropping  it was a 4 when it should be a 14), INCREASED TENDENCY TO BRUISE (Body started bruising - started on her legs and then spread to other locations) and HAEMORRHAGE (she was bleeding everywhere on her body) in an 84-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch nos. 023M20A and 013M20A) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     The patient's past medical history included Scoliosis and Sciatica.   On 03-Feb-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) 1 dosage form. On 03-Mar-2021, received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) dosage was changed to 1 dosage form. On 17-Feb-2021, the patient experienced DYSPNOEA (experienced a little bit of shortness of breath) and FATIGUE (got tired very easily). On 03-Mar-2021, the patient experienced INCREASED TENDENCY TO BRUISE (Body started bruising - started on her legs and then spread to other locations) (seriousness criteria hospitalization and medically significant). On 28-Mar-2021, the patient experienced HAEMOGLOBIN DECREASED (hemoglobin levels were dropping  it was a 4 when it should be a 14) (seriousness criterion hospitalization) and HAEMORRHAGE (she was bleeding everywhere on her body) (seriousness criterion medically significant). At the time of the report, HAEMOGLOBIN DECREASED (hemoglobin levels were dropping  it was a 4 when it should be a 14), INCREASED TENDENCY TO BRUISE (Body started bruising - started on her legs and then spread to other locations) and HAEMORRHAGE (she was bleeding everywhere on her body) had not resolved and DYSPNOEA (experienced a little bit of shortness of breath) and FATIGUE (got tired very easily) outcome was unknown.      DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): On an unknown date, Computerised tomogram: inconclusive (Inconclusive) Inconclusive.     For mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular), the reporter did not provide any causality assessments.   After a few days, her body started bruising. It started on her legs and then spread to other locations. On 28-Mar-2021, she went into the hospital because of the bruising that kept expanding. The doctor there said that her hemoglobin levels were dropping  it was a 4 when it should be a 14. They did a couple of transfusions and discharge her on 30-Mar-2021. On 02-Apr-2021, she had to go back to the hospital, she had bruising on her hands, feet, and arms. Doctor told them that it was that her blood was thinning and that she was bleeding everywhere on her body. She was still at the hospital. They also said that it looked like her body was fighting the treatments - producing antibodies against them. They gave her plasma and steroids. They also did every test possible, CT scans, and the doctors still dis not know what is causing it.  Based on the current available information and the temporal association of the product use and the start date of the events a causal relationship cannot be excluded.   This case was linked to MOD-2021-071592 (Patient Link).; Sender's Comments: Based on the current available information and the temporal association of the product use and the start date of the events a causal relationship cannot be excluded.