Nerve Pain from 19-Nors

By Jen Carlson,  Doctor
 05 August 2025
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Nerve Pain from 19-Nors

Nerve Pain from 19-Nors

These types of steroids, such as the 19-nor steroids, have been popular with bodybuilders and athletes who want to increase their physical performance as well as increase muscle mass. Nevertheless, such drugs may have unforeseen side effects, and one of them includes nerve pain or neuropathy. Although there are no reports about it, the use of 19-nor steroids was reported to cause sharp, burning, or radiating pains during use or after use.

What are the 19-nor steroids? 

The term "19-nor" refers to the anabolic-androgenic steroids (AAS) type, used in anabolic steroids, that consists of well-known substances, such as nandrolone (Deca-Durabolin) or trenbolone. These are compounds that do not have a carbon atom in the 19th position of the steroid frame, and this modification makes their properties different. 

The 19-nors have: 

  • High anabolism
  • Fewer androgenic side effects than testosterone
  • Specific receptor binding in the body, of which progesterone receptors are binding sites

Can 19-Nors Cause Nerve Pain?

There is no direct scientific research on whether or not 19-nors can cause nerve pain, but anecdotal reports of users and certain biological pathways point to there being a connection.

These are the possible reasons:

1- Neuroinflammation and Estrogenic Activity

19-nors can add progestogen and estrogenic activity to the body. A high level of estrogen may result in:

  • Water Retention
  • Inflammation
  • Stress on the nerves. 

Consequently, symptoms can be similar to sciatica, carpal tunnel, or general nerve irritation.

2- Vitamin B12 Deficiency

Use of steroids, including 19-nors, can disrupt vitamin B12 absorption or cause an increase in requirements for the same. B12 is essential for: 

  • Myelin sheath health (defends nerve fibers)
  • The signal transmission of a nerve 

A lack of vitamin B12 could be felt as numbness, tingling, burning pain, or weakness.

3- Muscle Growth and Nerve Compression

The very fast muscle development near constrained anatomical regions (such as the shoulder girdle or the spine) can cause nerve entrapment syndromes:

  • Compression of the Brachial plexus
  • Irritation of the nerve roots of the lower back
  • Firmness of the ulnar/median nerve 

This is achievable, particularly when athletes stack 19-nors and combine them with rigorous exercise.

4- Indirect Effects from Trenbolone ("Tren Cough" and CNS Irritation)

Other individuals, taking trenbolone, experience peculiar symptoms of the central nervous system (CNS), such as nervousness, sleeplessness, and even pain in the nerves. The fact that Trenbolone has a strong binding affinity towards the androgen receptors and other neurosteroid processes could produce CNS hypersensitivity in some people.

Warning Signs

If you are current or have been/are on 19-nor steroids, be aware of these warning signs: 

  • Numbness or tingling in the limbs
  • A sharp or stabbing pain in the back, neck, or legs
  • Muscle softness
  • Burning sensation in hands and feet
  • Discomfort that improves during sleep or post-workout 

The symptoms may be circumstantial neuropathy, a pinched nerve, or other neurological disorders.

What You Can Do

1- Stop or Reduce Use: Cessation or dose decrease of 19-nors and time checking whether the symptoms are improved.

2- Supplement Wisely: Consider taking a supplement with:

  1. Vitamin B12
  2. Magnesium
  3. Fatty acids of omega-3
  4. Anti-inflammatory herbs (e.g., turmeric)

3- Medical Assessment: The pain in the nerves should not be ignored. A physician would suggest:

  1. Blood tests (B12, folate, inflammatory markers)
  2. Nerve conduction studies
  3. Imaging (MRI or CT) to rule out compressions

4- Physical Therapy: Mechanical compression may be reduced using stretching exercises, posture correction activities, and nerve flossing.

Conclusion

Testing of the connection with 19-nor steroids and causing nerve pain is largely anecdotal, but the rationale behind the physiology indicates that it is a possibility. When you feel the symptoms of the 19th or after 19, nerve-related, you should not ignore them. It is not advisable to diagnose yourself; instead, you should see a doctor and take everything into consideration, like the intensity of the training, the right nutrition, and supplementation.

References 

  1. Nerve Pain and Nerve Damage: Symptoms, Causes, Diagnosis, and Treatment (2024) WebMD. WebMD. Available at: https://www.webmd.com/brain/nerve-pain-and-nerve-damage-symptoms-and-causes (Accessed: 28 July 2025).
  2. (2007). Available at: https://academic.oup.com/edrv/article-abstract/28/5/521/2355015?redirectedFrom=fulltext (Accessed: 28 July 2025).
  3. (2019). Available at: https://www.painphysicianjournal.com/current/pdf?article=NjAxNQ%3D%3D&journal= (Accessed: 28 July 2025).