Does vaccination cause excessive bleeding?

The second story involved the case of Alexis Lorenze. Alexis claimed that after receiving three vaccines for meningitis, pneumonia, and tetanus, she experienced a severe reaction, including swelling and pain, which she believes worsened her condition, Paroxysmal Nocturnal Hemoglobinuria (PNH).

Alexis has a rare blood disorder called Paroxysmal Nocturnal Hemoglobinuria (PNH). In this condition, the immune system attacks the body’s own red blood cells. Red blood cells carry oxygen throughout the body, so when they break apart, serious health problems can happen. These problems can include dangerous blood clots and damage to organs, such as the liver.

Based on her TikTok videos and medical records, Alexis had been feeling unwell for several weeks before she went to the hospital. She says doctors would not begin treatment unless she received certain vaccines. But why would vaccination be required when someone is already seriously ill?

The reason is connected to how PNH is treated. Common PNH treatments weaken the immune system, which makes it much harder for the body to fight infections. Because of this, doctors routinely give vaccines against especially dangerous bacteria, such as meningococcal and pneumococcal infections, before treatment begins. These infections can be life-threatening for people with weakened immune systems, so preventing them is standard medical care.

Alexis believes the vaccines caused her injuries because she developed a rash within about 10 minutes of receiving them. However, reactions caused by vaccines usually do not happen that quickly. A more likely explanation is that she tested positive for parvovirus B19, a virus known to cause rashes, fatigue, and problems with blood cells.

Her lab results also show she already had blood-clotting problems before the vaccines were given. Blood clotting issues can lead to bruising and skin changes, which may explain the symptoms she later noticed.