Vaccination site movement impairment,; bled from the injection site,had to put bandages on injection site; arm felt like led, like a 50-pound weight was on her left arm; "I'm not sure if what is happening to me is from the vaccine itself or the administration of it but I've been having pain in my arm ever since" (6 months).; This spontaneous case was reported by a consumer and describes the occurrence of LIMB DISCOMFORT (arm felt like led, like a 50-pound weight was on her left arm), VACCINATION SITE MOVEMENT IMPAIRMENT (Vaccination site movement impairment,), VACCINATION SITE HAEMORRHAGE (bled from the injection site,had to put bandages on injection site) and VACCINATION SITE PAIN ("I'm not sure if what is happening to me is from the vaccine itself or the administration of it but I've been having pain in my arm ever since" (6 months).) in a 54-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch nos. 038B21A and 040A21A) for COVID-19 vaccination.     No medical history was provided by the reporter.  The patient's past medical history included Endometriosis (In 2019 she had post-menopausal bleeding, she had an intervention to remove a "polyp or something" in her uterus that ended up being endometriosis.) in 2019. Concomitant products included COLECALCIFEROL (VITAMIN D [COLECALCIFEROL]) and ASCORBIC ACID, BIOFLAVONOIDS NOS, HESPERIDIN, MALPIGHIA GLABRA, ROSA CANINA, RUTOSIDE (VITAMIN C [ASCORBIC ACID;BIOFLAVONOIDS NOS;HESPERIDIN;MALPIGHIA GLABRA;ROSA CANINA;RUTOSIDE]) for an unknown indication.   On 09-Mar-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) 1 dosage form. On 06-Apr-2021, received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) dosage was changed to 1 dosage form. In October 2020, the patient experienced VACCINATION SITE PAIN ("I'm not sure if what is happening to me is from the vaccine itself or the administration of it but I've been having pain in my arm ever since" (6 months).). On 06-Apr-2021, the patient experienced LIMB DISCOMFORT (arm felt like led, like a 50-pound weight was on her left arm) and VACCINATION SITE HAEMORRHAGE (bled from the injection site,had to put bandages on injection site). On an unknown date, the patient experienced VACCINATION SITE MOVEMENT IMPAIRMENT (Vaccination site movement impairment,). The patient was treated with PARACETAMOL (TYLENOL) for Adverse event, at an unspecified dose and frequency. On 08-Apr-2021, LIMB DISCOMFORT (arm felt like led, like a 50-pound weight was on her left arm) had resolved. At the time of the report, VACCINATION SITE MOVEMENT IMPAIRMENT (Vaccination site movement impairment,), VACCINATION SITE HAEMORRHAGE (bled from the injection site,had to put bandages on injection site) and VACCINATION SITE PAIN ("I'm not sure if what is happening to me is from the vaccine itself or the administration of it but I've been having pain in my arm ever since" (6 months).) outcome was unknown.        For mRNA-1273 (Moderna COVID-19 Vaccine) (Unknown), the reporter did not provide any causality assessments.   Patient stated that this was concerning her and that she can not tell if it was getting better or worse.   This case was linked to MOD-2021-363236 (Patient Link).