What’s wrong with the hard lumps on both sides of my buttocks that hurt when I’m more than 4 months pregnant?

When you are more than 4 months pregnant with a hard and painful lump on both sides of your buttocks, consider that it may be related to progesterone injection.
Women who are pregnant with symptoms of pre-miscarriage, such as abdominal pain and vaginal bleeding, may be treated with intramuscular progesterone injection in order to preserve the fetus. Hard lumps on both sides of the buttocks of pregnant women are painful, which may be due to malabsorption of the drug after injection and local irritation.
For the above situation, generally can take the local hot compresses, can accelerate the local blood circulation, and then promote the redness and swelling of the hard lumps subside, but also can relieve the symptoms of pain. If the symptoms are still not relieved after applying hot compresses, you should go to the hospital as soon as possible for active treatment.
Pregnant women should relax, do not be anxious and nervous, and go to the hospital for regular checkups to understand the development of the fetus.